Recent content by tina_081493

What do I substitute theta with?

I took x2+y2=r2 Because of the r2, the 4sin22θ canceled out, leaving me with what I got.

Ok so as I was typing out my work, I realized a mistake I made. So now I'm down to: (cosθ)^2+(sinθ)^2+2cosθsinθ=1 Am I going to need to use some kind of trig substitution to solve this now?

I ended up getting the equation for a circle in the cartesian coordinates which does not match the graph for the polar equation.

I was given the problem r=2sin(2(θ)). I'm supposed to write the equation in the Cartesian Coordinates. I understand the basics to this but I'm not really sure how I'm supposed to write the equation when I have x=2sin(2(θ))cos(θ) and y=2sin(2θ)sin(θ).