Find the tangents at the pole for r=2(1-sin theta)

I've been having alot of trouble with this concept. So far Ive tried setting r= to 0 and solving for theta but i dont know if thats right...

Printable View

- May 14th 2009, 03:07 PMterrytriangleGraph of the polar equation at the pole
Find the tangents at the pole for r=2(1-sin theta)

I've been having alot of trouble with this concept. So far Ive tried setting r= to 0 and solving for theta but i dont know if thats right... - May 14th 2009, 03:44 PMgalactus
There's a little more to it than that.

Find the derivative of and plug it all in.

Then, set to 0 and solve for theta.

I just used t for less typing.

Upon doing all that, you should get

Just set and solve for t.

__Spoiler__: - May 14th 2009, 06:41 PMterrytriangle
thanks. so for my next problem its r=3sin2t

so i would solve for dy/dx, set the numerator equal to zero, and solve for t?