Question

please help me out :)
what is 3x-y-0 in polar form?

Answer 1

\[x=r \cos \theta \]
\[y=r \sin \theta \]

Answer 2

Make those substitutions.

Answer 3

3r cos theta - r sin theta - 0

Answer 4

I'm thinking there is supposed to be an equal sign in there some where.

Answer 5

me too.. maybe it is equal to 0..

Answer 6

Well, look at the source. Where did you get that problem?

Answer 7

I get that problem in my prof's fan page.

Answer 8

I guess I would pretend that it says 3x-y=0
Then after you make the substitutions, solve it for r

Answer 9

ahh, okay.. so, can I make the equation 3rcostheta=rsintheta?

Answer 10

i asked my prof.. and she said, it's equal to 0. :)

Answer 11

yes

Answer 12

3 = tan theta ?

Answer 13

Is that a new problem?

Answer 14

am, no.. i just solve 3rcostheta=rsintheta ..

Answer 15

Can't solve one equation with two variables. Your job was to write it in polar form and you have done that.

Answer 16

ahh.. so it means, 3rcostheta=rsintheta is the final answer?

Answer 17

yes

Answer 18

ahh.. thank you. :)

Answer 19

yw