#Trig Explanation

126 messages · Page 1 of 1 (latest)

woven crater
minor nestBOT
woven crater
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Hi my teacher didn't really explain this well and im finding it hrd to clearly visualise

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can someone explain this to me pleaase?

pseudo canopy
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are u familiar with angles and their link to graphs?

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as in 0 to 90 is 1st quadrant, 90 to 180 is 2nd quadrant etc

woven crater
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i'm trying to visualise it where theta is an angle above 0 and below 90degrees

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use A B C to represent opposite adjacent and hypotenuse

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so then tan (270 - theta) would be: -A / - B = A/B

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then how would that same exact value equate to cot theta if it's gonna be B/A ?

pseudo canopy
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give me a minute, lemme grab some paper and actually draw a figure so i can send it to you

woven crater
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alr thx

pseudo canopy
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are u aware of the 90-theta rule?

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or basically how all the ratios switch at 90-theta

woven crater
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yea i do

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but tbh i've never been able to visualise it clearly

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i'm in 10th grade so i think it's pretty alarming that I haven't understood this fundamental yet

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wait

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u just use the other angle of the triangle and it switches

pseudo canopy
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exactly

woven crater
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ohhh

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wait so in an ASTC graph

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when they using theta

pseudo canopy
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go on

woven crater
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that means all opposite and hypotenuse values r equal right

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like u imagine the same triangle

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just being rotated by the angle

pseudo canopy
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logically yeah but theoretically opp and hyp can never be equal

woven crater
pseudo canopy
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where are u from btw, if i may ask

woven crater
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uhhhh

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australia

pseudo canopy
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ahh i see, makes sense

woven crater
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bruh

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is my country domb

pseudo canopy
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nah

woven crater
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alr all goodies then

pseudo canopy
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im happy you're not from india as ppl don't bother asking such questions here

woven crater
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lol cool

pseudo canopy
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they just learn it and never think, anyways, should i explain again or is it cool?

woven crater
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uhhh i get the 90 - theta ones

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but like what u do if it's 270 + theta

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or like 90 + theta

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or 180 - theta

pseudo canopy
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ahh i see

woven crater
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like in an exam i'd usually just use compound angles to derive it but i want to try to visualise it asw

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to save time in working

pseudo canopy
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honestly these fundamentals aren't required unless u want to pursue a degree in mathematics later

woven crater
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oh bruh wth

pseudo canopy
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i've finished hs recently and i just learnt it and use the same thingeverywhere

woven crater
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oh shi

pseudo canopy
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the logic only matters when you're doing higher order stuff

woven crater
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really but this is content for the year above me

pseudo canopy
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i can make a chart and send it to u if u want for easy learning

woven crater
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unless my tutoring teacher slipped in random stuff

woven crater
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wait lemme just type a question in my booklet

pseudo canopy
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there are like 2 or 3 tables and that basically sums up basic trigo

pseudo canopy
woven crater
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like im pre sure i need to learn that

pseudo canopy
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see tan(270-x) lies in 3rd quadrant

woven crater
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yea

pseudo canopy
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in that quad, tan and cot are +ve

woven crater
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wait what's that

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i see that all the time

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+ve

pseudo canopy
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positive

woven crater
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oh bruh

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im bombing physics

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continue tho

pseudo canopy
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yeah and whenever u see 270 or 90 in the angle, blindly change tan to cot, cos to sin and vice versa

woven crater
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blindly?

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bruhhhh

pseudo canopy
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as in without thinking, just a phrase

woven crater
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na ik but thats annoying

pseudo canopy
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ik

woven crater
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why can't hs's just put in the theory to understand it

pseudo canopy
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i love trigo and i had to do the same shit for 2 yrs

woven crater
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so im being forced to just remember formulas and spam compound angles

pseudo canopy
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but like this is the only proper learning part except for formulas in trigo till hs gets over

pseudo canopy
woven crater
pseudo canopy
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compond, multiples, sub multiples, transformations etc.

woven crater
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alr

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wut country r u from

pseudo canopy
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im from india👍

woven crater
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bruh

pseudo canopy
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yeah ik ik

woven crater
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bro's probably a genius then

pseudo canopy
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i love math lol

woven crater
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wait r u bilingual

pseudo canopy
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yep

woven crater
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cool

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self taught?

pseudo canopy
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mostly yeah\

woven crater
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bro wtf that's crazy

pseudo canopy
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i never learned formulae tho

woven crater
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r u doing maths in uni rn?

woven crater
pseudo canopy
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just started solving questions and used them to know how they work and stuff

woven crater
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bruh

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i wanna get to that level of maths

pseudo canopy
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you're gonna have to grind my guy

woven crater
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cuz like last yr i was doing really poorly in maths

pseudo canopy
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i spent hrs everyday for like 3-4 yrs

woven crater
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and this yr am i starting to try take it more seriously

pseudo canopy
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hmm i could help u if u want

woven crater
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and i go to an academic hs so like i gotta clutch up

pseudo canopy
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im anyways free for a while

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college starts in 2 months

woven crater
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damn fr

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can i friend u then?

pseudo canopy
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yeah sure

woven crater
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thx cuh

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but like what r u getting out of this

pseudo canopy
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i have gained a lot of knowledge, might as well pass it on

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to someone who likes math as much as me

woven crater
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but im starting to

pseudo canopy
woven crater
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but i got asian parents so like they also telling me to get better

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alr it's actually like 12am for me rn but i really appreciate this convo with u bro

pseudo canopy
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ahh i see, and dw abt it, hit me up with doubts and stuff anytime

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so i assume you're off to sleep, goodnight then