0606 P21 - Nov 2023 - Q11 - 9 marks
7384
(a) Show that
\(\displaystyle \frac1{\sec x-\cosec x}+\frac1{\sec x+\cosec x}=\frac{2\cos x}{1-\cot^2x}.\)
(b) Solve the equation
\(3\tan^2\left(y+\frac\pi4\right)=1\)
for \(-2\pi\lt y\lt0\).
Solutions locked. Please sign in with access to view them.