0606 P22 - Jun 2020 - Q8 - 9 marks
8147
(a) Solve
\(3\operatorname{cot}^2 x-14\operatorname{cosec}x-2=0\)
for \(0^\circ\lt x\lt 360^\circ\).
(b) Show that
\(\frac{\sin^4y-\cos^4y}{\operatorname{cot} y}=\tan y-2\cos y\sin y.\)
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