Consider the following.
If x = (1/2) sin θ;
y = (1/2) cos θ; – π
<= θ <= π are parametric equations of a curve, then
the squares of x and y and add them: x2
This answer is not correct on my homework? Do you know why?
Maybe the parametric equations are not x = (1/2)cost; y =(1/2)sint. I am sorry but the fractions in your message do not look quite readable.
If x = cos(t/2) and y = sin(t/2), then the equation will be x^2 + y^2 = 1.
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