#Pre-Cal 2

201 messages · Page 1 of 1 (latest)

near canyon
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math problem

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near canyon
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i need help

crisp flare
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i think you meant $3\tan(\theta)$ instead of $3\tan(0)$

pliant capeBOT
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tigerIsHere

475508941950943232.png
near canyon
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oh

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yea

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but i wasn't sure about c

crisp flare
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just put it in a calculator

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,w 3*tan(71 deg)

pliant capeBOT
tight swallow
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3tan(71)...

near canyon
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so 8.712?

crisp flare
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yep

near canyon
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yup

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ty

crisp flare
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np

tight swallow
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8.713

near canyon
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can u help me with 1 equation and im done for the week

shy python
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Send

near canyon
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A small plane lands at a point 286 miles east and 99 miles north of the point at which it took off. Find the distance the plane flew and the direction.

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for the distance

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i got like 957.23

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but i think i calculated it wrong

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thus the wrong answer

crisp flare
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,w sqrt(286^2+99^2)

pliant capeBOT
near canyon
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if we know our distance is 302.64

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how do we find our direction?

crisp flare
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you can find the angle by using inverse tangent

near canyon
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tan-1[ (opposite side) / (adjacent side) ] .?

crisp flare
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yeah exactly

shy python
shy python
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Direction I assume like northeast or something

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but ig u could say (angle) northeast to be specific

crisp flare
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well i mean

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this looks like a trig exercise

shy python
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yeah fair point

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not geography after all 💀

near canyon
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i got 19.88 degrees

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am i worng

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wrong*

crisp flare
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,w arctan(99/286)

near canyon
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tan⁻¹(99 / 286) ≈ 19.88

pliant capeBOT
near canyon
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cause this is what id did

crisp flare
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,w arctan(99/286) in degrees

pliant capeBOT
shy python
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Lmao wolfram sucks

crisp flare
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bruhh

shy python
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Just convert radiant to degree using formula

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180/pi

crisp flare
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,w arctan(99/286) * 180 / pi

pliant capeBOT
shy python
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Ye ur right @near canyon

near canyon
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idk what to put down tho

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the decimal

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or 9/26

shy python
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U say 19.88 degrees north east

near canyon
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i could be wrong

shy python
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?

near canyon
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if im wrong i would like have 2 more attempts to get the hmw right

shy python
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Wait how’d u get 19.88

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wolfram say 19.09

shy python
near canyon
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both are wrong

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i tried lol

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1 more

shy python
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wait

crisp flare
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wut

shy python
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Does it specify rounding?

near canyon
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my distance is correct

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no

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degrees bearing clockwise from North

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only this

shy python
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I think u always round to nearest third decimal place

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Send pic of how they want

crisp flare
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wait

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from north?

near canyon
crisp flare
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ohh
the 19.09 is the angle from east

shy python
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Yeahhh

crisp flare
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so 90 minus that

shy python
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^^

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and use the correct value

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Not 19.88

near canyon
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so 19.09?

shy python
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Yes

near canyon
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i already tried that

crisp flare
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I mean 90 - 19.09

shy python
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No bru

near canyon
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it's wrong my

shy python
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90-19.09

near canyon
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oooooh

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so 40.91

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i see

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good looks

shy python
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yeah whatever that equates to

near canyon
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wait

shy python
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Right?

near canyon
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just to be on the safe side

shy python
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what

near canyon
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that's my answer/

shy python
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ok

near canyon
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bro what

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it's 70.906

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oml

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what

crisp flare
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wait

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how you get 40.91

near canyon
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did you mean 90 degrees

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i subracted 60

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i messed up

shy python
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bro

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All u had to do was 90-19.09 😭😭😭😭😭

near canyon
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ik despair \

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i have to redo this now

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oml

shy python
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why’d u subtract 60

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Mistake or did not understand why we did that

near canyon
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mistake

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i swear it said 60

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thus the reason

shy python
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what said 60

near canyon
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my head

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i also got 306 miles can you verify it

crisp flare
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,w sqrt(295^2+82^2)

pliant capeBOT
crisp flare
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looks right

near canyon
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im not sure if i should round it tho

crisp flare
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Maybe put some decimals in

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just to be safe

near canyon
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306.18?

crisp flare
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yeah

near canyon
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what about direction

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can u spoon feed me that one :D\

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im to tired

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of messing up

shy python
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We already told you how to do it

near canyon
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i found it

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i think

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90 - 15.84

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and our answer would be

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74.16

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bruruururuurur

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i did everything right

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how is my direction always wrong

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isn't it

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theta = arctan(82/295)

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thus 15.84 degrees

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then you subtract 90

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which gives me my answer

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i am done

crisp flare
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,w 90 - arctan(82/295) * 180 / pi

pliant capeBOT
near canyon
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how is it 46

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bru

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74.46

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ill try that

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tiger

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can you tell me why i was wrong

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in the first place

crisp flare
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rounding errors maybe

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i guess you gotta put everything in one expression

near canyon
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oh

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ok

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,w cos^-1 (cos(- 172/25 pi))

pliant capeBOT
near canyon
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yo

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tiger

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before u go

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and i close this

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,w sin^-1(sin(19/23 pi))

pliant capeBOT
crisp flare
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yeah?

near canyon
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why

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is it wrong

crisp flare
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what's the question

near canyon
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Find the exact value of the expression:

shy python
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Cuz u can simplify that using trig rules

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Lol

near canyon
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sooooo

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it/s

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4/23 * pi

shy python
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bro all of this is verifiable on the internet

near canyon
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idk

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man

shy python
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Use Symbolab or something to check

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All your arithmetic questions can be answered using those software

shy python
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Wolfram alpha gave u the answer

near canyon
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it said the answer was 19/23pi

shy python
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wait send question

near canyon
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smmmh

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no it was right

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the 4/23

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  • pi
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+close