Question

how do you find dy/dx of r=1+cos(theta) as a function of theta?

Answer 1

derivative of cos = - sin

Answer 2

That's just the derivative of 1+cos(theta) right?
So it would be -sin(theta)

Answer 3

are u sure it wants dy/dx or dr/dtheta?

Answer 4

I didnt think it was possible to find dy/dx, but thats what the worksheet says

Answer 5

Yeah, of course it is (possible) :)

Answer 6

It's probably just a typo, aka using variables interchangeably. That happens a lot.

Answer 7

i think it means derivative as a function of theta so ya u can just
say its -sin (theta)

Answer 8

yep

Answer 9

But where's the adventure in that :D
\[\huge x=r\cos(\theta)\]\[\huge y=r\sin(\theta)\]

Answer 10

wherse the fun in that