- #1
r34racer01
- 63
- 0
So I'm looking at this example in my textbook where they're trying to find the vert. & horizontal tangent lines of r = sin Θ, 0 < Θ < pi. they say to first change it to parametric equations where
x = r cos Θ = sin Θ cos Θ
and
y = r sin Θ = sin Θ sin Θ = sin^2 Θ
But now I'm just really confused, how did they get these parametric equations?
x = r cos Θ = sin Θ cos Θ
and
y = r sin Θ = sin Θ sin Θ = sin^2 Θ
But now I'm just really confused, how did they get these parametric equations?