[Nodes Of Ranvier]

Two parametric equations:

X=2cot(t) Y=2sin^2(t) where 0<t<(or equal to)pi/2

gives the Cartesian equation y=8/(x^2+4)

What is the domain of the curve?

The answer is X>0 but I don't understand why? I thought it would have been all real values of X.

Is it something to do with the limits of t?

Thank you.

[TenOfThem]

Given the acceptable values of t ... what values can x take?

[Nodes Of Ranvier]

(Original post by TenOfThem)
Given the acceptable values of t ... what values can x take?

So I get X=0 and no answer when I subtitute pi/2 to find X.

How does this make the domain X>0?

Thanks for answering btw

[TenOfThem]

What does Tan do between 0 and 90

So what does Cot do