9709 P32 - Mar 2022 - Q4
1643
The parametric equations of a curve are
\(x = 1 - \\cos \theta\),
\(y = \\cos \theta - \frac{1}{4} \\cos 2\theta\).
Show that \(\frac{dy}{dx} = -2 \\sin^2 \left( \frac{1}{2} \theta \right)\).
Solutions locked. Please sign in with access to view them.