Mathematics 9709 · AS & A Level · Trigonometry

Trigonometry — practice question

(main)[4]

Prove that $\tan^2 x - \sin^2 x = \tan^2 x\sin^2 x$ holds.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Writes $t^2$ as $s^2/c^2$ or $\sec^2 x - 1$” …