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https://i.gyazo.com/1a50524381eaebcd22762fa6292443fe.png

hey i actually got stuck @Astrophysics

Hey, no worries, where did you get stuck?

r = 5sqrt(2)

yea i got that

ok so tan(theta) = -5/5

???

Yes exactly!

tan(theta) = -1
from here to I inverse it?

Yup \[\theta = \tan^{-1}(-1)\]

ok give me a sec

7pi/4

Good so that is 315 degrees

ok so it would be 5sqrt(2),315

Yes, and the other you want for \[-5\sqrt{2}\]

Which is just 315-180

135

Bingo

so the answer is A?

Sounds good!

Thank you so much for the help! :)

Np :)

Yup I already had shown that in the previous post ;P

you mind helping me with one more? sorry. lol

Sure haha

Find all polar coordinates of point P = (2, 14°)

n is an integer

x = 1.94059
y = 0.48384

Ok maybe I shouldn't have wrote that just ignore it and look at what I said after

lol ok

so would it just be (2, 14 +/- 2npi) ???

Yes that works (2, 14 +360n) as we're using degrees

is that it?

yes or (-2, 14+90+360n)

wait im confused now where did the 90 come from?

Look at what I said twice, the polar representations

so all the polar coordinates are (2, 14 +360n) , (-2, 14+90+360n)

Yes that sounds good

ok thanks again. for all the help

oh ok. :)

wait wait that should be an OR not an AND haha ok

lol its alright

xD

Ok have fun and take care haha

you too. Thanks again

Np :)