Mathematics 9709 · AS & A Level · Trigonometry

Trigonometry — practice question

Given that $\cos x = p$, where $x$ is an acute angle in degrees, find the expression in terms of $p$.

(i)[1]

Determine $\sin x$.

(ii)[1]

Determine $\tan x$.

(iii)[1]

Determine $\tan(90^\circ - x)$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate result $\sin x = \sqrt{1-p^2}$” …