Question

x = sin 1/2θ, y = cos 1/2θ, −π ≤ θ ≤ π (a) Eliminate the parameter to find a Cartesian equation of the curve.

Answer 1

Use the form a cos ( b x− c) + d to find the amplitude, period, phase shift, and vertical shift.

x = sin ( 1 2 θ )

y = cos ( 1 2 θ )

− π ≤ θ ≤ π ( a )

Explanation: