#sequences

409 messages · Page 1 of 1 (latest)

shrewd hamlet
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bro really just posted his entire assignment here

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Q1 is really simple.
Let's start with Xn
The n means what position in the seauence. In this case, 10.
So replace x with 10

sick jacinth
sick jacinth
shrewd hamlet
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Why don't we try to figure it out instead of me giving you the answers

sick jacinth
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bcuz that’s a lot of effort

shrewd hamlet
sick jacinth
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the parts with letters n numbers

shrewd hamlet
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Right so

shrewd hamlet
sick jacinth
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it’s like 3n+2 would be 5 then 8 then 11

shrewd hamlet
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Perfect!

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So in 3n+2, if n is 1 then you get 5

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If n is 2 you get 8

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And if n is 3 you get 11

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The 1,2,3 are Xn

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N is the position in the sequence

sick jacinth
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is the answer 73

shrewd hamlet
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Dunno

sick jacinth
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it is

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i’m literlslt a genuius

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jk someone tomd me!!!

shrewd hamlet
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Well are you seeing what I mean

sick jacinth
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no

shrewd hamlet
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er

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right let's go back to 3n+2
The sequence is
5 8 11 14 17. --> sequence
1 2 3 4 5 --> position in the sequence

To get the 4th number in the sequence, n would be 4. So we would have 3(4)+2, which is 14

sick jacinth
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isn’t that 14

shrewd hamlet
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Mb missed the 1

sick jacinth
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so why is there an x in my question

shrewd hamlet
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quite frankly I doing know

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It's useful though because you know it relates to sequences

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So whenever you see it in a test youd know that sequences are involved

sick jacinth
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i have a test tomorrow

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ohhhh no i forgot i had a test tomorrow

shrewd hamlet
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Well better late than never

sick jacinth
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i’m gonna copy the person next to me

shrewd hamlet
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Honestly not worth it imo

sick jacinth
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it’s ok it’s just a like half term assesment

shrewd hamlet
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but then your not going to know where you've messed up

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What year you in

sick jacinth
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year 10

shrewd hamlet
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Yeah man trust me it's not worth it

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It really messes you jp

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Used to do it for science

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Having to learn everything again

sick jacinth
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oh my god i hate science

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and history

shrewd hamlet
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well maths matters

sick jacinth
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i have a science test on thursday but i’m skipping it cuz i got an appointment 💀

shrewd hamlet
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But back to the math

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Do you understand now?

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Sequences are pretty easy imo

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On exams it's the best thing to sde

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There's barely anything to cover so it's usually a quadratic sequence question worth like 5 marks

sick jacinth
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i know sequences but like if it’s a long question then i don’t

shrewd hamlet
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Why don't you try some questions

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Or I can go through one with you

sick jacinth
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i tried them already

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and it was hard

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40-2n i kept putting the ads 40 - 2 and didn’t realize and then i got annoyed so i didn’t do it

shrewd hamlet
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Are you sure it's 40-2n

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And not 40n-2

sick jacinth
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-2+ 40 is like

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no it’s 40-2n

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it’s the second photo

shrewd hamlet
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Do you know how to find the nth term

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Of a sequence

sick jacinth
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yes

shrewd hamlet
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Right

sick jacinth
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find difference in numbers then that’s the n and find how different it is from that nnn in ber and that’s the + - or whatever

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i am so hungry for gingerbread right now

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first term is like 38 right

shrewd hamlet
sick jacinth
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sure

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are yoy doubting me

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don’t give me one’s with letters

shrewd hamlet
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Nope I want to see where I can help out

sick jacinth
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send me a question

shrewd hamlet
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3,7,11,15,19

sick jacinth
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4n-1

shrewd hamlet
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Awesome

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Would you mind doing another one rq

sick jacinth
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sure

shrewd hamlet
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5,3,1,-1,-3

sick jacinth
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-2n+

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let me count rq

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+8

shrewd hamlet
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What I usually do is test it after I get the nth term

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If you use that nth term you'd get 6,4 as the first 2 terms

sick jacinth
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WHAT

shrewd hamlet
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Assuming you did 5+3 instead of 5-3

sick jacinth
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i counted on my fingers

shrewd hamlet
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See you know the difference is -2 right

sick jacinth
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yes

shrewd hamlet
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So to figure out what comes after -2n

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You find the "zeroth tern"

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Essentially go back one

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One sec

sick jacinth
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the answe is -2n + 7 or

shrewd hamlet
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Yep

sick jacinth
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that is my vad

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i counted my fingers wrong

shrewd hamlet
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Ah fair

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Anyways back to number 2

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So you have the nth term 40-2n

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And we know that n is the position in the sequence

sick jacinth
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yeah

shrewd hamlet
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We need to find the first 3

sick jacinth
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it’s like -2n+40

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rhgt

shrewd hamlet
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Sure

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Either way you multiple first

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Multiply

sick jacinth
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first is 38 right

shrewd hamlet
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Yep

sick jacinth
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then u -2 then add 40

vast sand
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omfg

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helping me aswell

sick jacinth
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NOOO WAIT

vast sand
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cuz i forgot how to so sequences

sick jacinth
vast sand
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I FORGOT Sequences

sick jacinth
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WAIT IT IS MINUS TWO

vast sand
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we did them last year

sick jacinth
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yeah yeah!!

vast sand
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IN THE BEGINNING OF THE YEAR

sick jacinth
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38-2

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36

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+30

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40*

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76

shrewd hamlet
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nono

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wait yes

sick jacinth
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so 38,76,114

shrewd hamlet
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nope

sick jacinth
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why nottrt

shrewd hamlet
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Bidmas

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you multiply first

sick jacinth
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vodkas

shrewd hamlet
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well your mutiplying twice

sick jacinth
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bodmas

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brackets operation division multiplication addition subtraction

shrewd hamlet
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For the second one, 40-2(2)

sick jacinth
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what the hel is i

shrewd hamlet
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It would be 40-4

sick jacinth
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why

shrewd hamlet
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Not (40*2)-4

sick jacinth
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the question changed cuz i got it wrong

shrewd hamlet
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Essentially the same thing

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(-3*1)+40

crude stag
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Just a quick question do you do higher paper?

sick jacinth
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yes

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i’m set two

shrewd hamlet
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I'm gonna do higher and further

sick jacinth
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who are yoy asking

vast sand
sick jacinth
vast sand
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how many sets do u have

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4 right

sick jacinth
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i think five or six

vast sand
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HUHH

sick jacinth
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we have dumb people

vast sand
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same

sick jacinth
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i’m actually surprised i’m in set two bro 💀

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30-3

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40-3

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is

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37

vast sand
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our class is like 25% smart ppl and 75% idiots

sick jacinth
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i gotta sit next to the weird kid 🙁

crude stag
vast sand
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(im part of the 75%)

sick jacinth
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he said i can’t give head bcuz i have bad eyes??

sick jacinth
shrewd hamlet
sick jacinth
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what part of the uk r u from

vast sand
shrewd hamlet
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11

sick jacinth
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me next year guys

vast sand
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same

sick jacinth
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77-6

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71

shrewd hamlet
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Got mocks in a month Pepe_Ldance

vast sand
sick jacinth
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71+40-9?

shrewd hamlet
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no not 71

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look

sick jacinth
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oh

shrewd hamlet
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You have 40-3n

sick jacinth
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i doubly hee the three tho

shrewd hamlet
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-3*1 = -3
40-3 = 37

vast sand
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my mocks r on the

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24th

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until the 2nd

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kms!!!$

shrewd hamlet
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If you study/revise you'll have no problem

sick jacinth
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i have a week off school from the 24th to the 28fh hahahaha

sick jacinth
shrewd hamlet
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I'm off school rn

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:)

vast sand
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but

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if i get hw im unable to do

shrewd hamlet
vast sand
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ill ask you since you're smart

sick jacinth
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what’s the answer to it

shrewd hamlet
vast sand
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will do

shrewd hamlet
sick jacinth
shrewd hamlet
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40-3n when n is 2

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Come on

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Year 6 stuff

sick jacinth
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40-6???

shrewd hamlet
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yep

sick jacinth
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THATS WHAT I DID

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71!!!

shrewd hamlet
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what

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n

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No

sick jacinth
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40-6 is 34

shrewd hamlet
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Your answer is 34

sick jacinth
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37+34

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the sequence

shrewd hamlet
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Ah I see

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You don't add them

vast sand
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where doni get roles

shrewd hamlet
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Your sequence is 37,34

sick jacinth
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why

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then -9?

shrewd hamlet
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40-9

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Yep

sick jacinth
vast sand
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i foujd it thx

sick jacinth
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OH MY BOD IT WAS RIGHT

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what’s the third photo

shrewd hamlet
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For the 3rd one just count the sticks

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Like first one is 7

vast sand
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11 then 15

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i think

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im ginna think aswell

sick jacinth
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how do yk first is seven

vast sand
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COUNT THE STICKS

sick jacinth
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boxes

vast sand
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literally 7 sticks

sick jacinth
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OHHHHH

vast sand
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in the 1st one

sick jacinth
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boxes

vast sand
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its 4 sticks each time

sick jacinth
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it’s like 7+4 right

vast sand
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so

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n + 4

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@shrewd hamlet am@i a genius or what

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dont write it yet

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i think im wrong

sick jacinth
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IT WAS WROMG

shrewd hamlet
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don't give him the answer lol

sick jacinth
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7,11,15

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that’s

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4n

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+3

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i think

shrewd hamlet
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portal

vast sand
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bro

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what

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IM SO CONFUSED

shrewd hamlet
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did you count the sticks

sick jacinth
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congrats me

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i did it guys

vast sand
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woowww

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why is it 3

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im confused

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@shrewd hamlet explain

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😭

shrewd hamlet
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whats up

sick jacinth
shrewd hamlet
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which part

sick jacinth
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i’m gonna do thi

IMG_2016.png
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nvm wtf

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do it for me

shrewd hamlet
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nonono

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you got this dude

vast sand
sick jacinth
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GHERES SO MANY LETTERS IN IT

shrewd hamlet
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ik the feeling man

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trust me

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look its trying to help

vast sand
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@sick jacinth is the difference not 4

sick jacinth
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what does question a and b mean

shrewd hamlet
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Xn = cn +d just means that it looks like this
3n+5

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Xn means "position in the sequence"

sick jacinth
vast sand
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11-7 is 4

sick jacinth
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difference is four

shrewd hamlet
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sasha

vast sand
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ye

shrewd hamlet
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let him lmao

sick jacinth
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then u add three from four

vast sand
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whay

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NO IM LITERALLY

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OHH

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nvm

sick jacinth
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💀

vast sand
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im still confused

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😭

shrewd hamlet
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ok so

sick jacinth
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explain what question a and b r asking

shrewd hamlet
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17, 21 25 29

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so we know the difference is 5

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so we know our equstion will be 5n+d

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d being a number

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now what I do to find that is this

sick jacinth
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isn’t it four

shrewd hamlet
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nope

sick jacinth
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it’s FOUR NOT FUVE

shrewd hamlet
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the difference is 5 right?

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just do 17-5

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and thats the answer

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5n+12

sick jacinth
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the difference is 4!!

shrewd hamlet
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oh

sick jacinth
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hahaha 💀

shrewd hamlet
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oh right

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💀

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4n+13

sick jacinth
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that’s a

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then b means

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the number 11 like the sequence

shrewd hamlet
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b means n = 11

sick jacinth
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so 4x11

shrewd hamlet
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yep yep yep

vast sand
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😭

shrewd hamlet
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your getting it!

sick jacinth
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then +13

vast sand
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i completely forgot how to do sequences

sick jacinth
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they’re writing it so weird bruh

vast sand
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gonna fail my mocks

shrewd hamlet
shrewd hamlet
sick jacinth
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44+13 is 57

shrewd hamlet
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if you find it intimidating just ignore it

shrewd hamlet
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mans got it

sick jacinth
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i hit my head really hard earlier

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on my bathroom door

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there is litersllt a bump on my head what the hell

shrewd hamlet
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thats usually what happens

sick jacinth
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ok this one

sick jacinth
shrewd hamlet
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what thats saying is

sick jacinth
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8x6

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48

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-17?

shrewd hamlet
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exactly

sick jacinth
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that’s like 31

shrewd hamlet
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idk bro I don't like subtraction

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or division

sick jacinth
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am on task three!

shrewd hamlet
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I can't do division rorryBubbleTea

sick jacinth
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out of six 🔥

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division is so easy

shrewd hamlet
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progress 💪

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yeah yeah yeah

sick jacinth
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i feel like a square head bruh this.bump

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this one is

IMG_2020.png
shrewd hamlet
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same as the sticks one

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just count the circles

sick jacinth
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someone count the dots

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i’m bad at counting

shrewd hamlet
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nah

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you get to do that Xtoungeput

sick jacinth
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nooooo my eyes don’t focus

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seven

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add four

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is

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11

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4,11,15

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that’s the same as before bruh

shrewd hamlet
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7 11 15

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just figure out the nth term

sick jacinth
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4n+3

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4x14

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is like

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using calculator

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56

shrewd hamlet
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yep

sick jacinth
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+3

shrewd hamlet
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59 is your answer

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look at that

sick jacinth
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guys i’m not doing it

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i’m gonna blame my mum if i get detention bcuz she’s being bitchy nd my sister oh my god

shrewd hamlet
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¯_(ツ)_/¯

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your the one who's gonna suffer

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you'd be able to do it in 2 minutes at most

sick jacinth
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she shouted at me bcuz i didn’t have a shower yet bcuz i’m doing homework

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does not give me time to do anything oh my god

sick jacinth
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literslly 3 people over 20 still living here only 1 of my siblings moved out

shrewd hamlet
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hey man your aspirations are up to you

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I'm just here to help with the math

sick jacinth
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i’m gonna become so fat i can’t move and become a discord mod

crude stag