A Level

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Evaluate

\sin 75^{\circ}\cos 15^{\circ}+\cos 75^{\circ}\sin 15^{\circ}

. (a)

1

(b)

\dfrac{\sqrt3}{2}

(c)

\dfrac12

(d)

\dfrac{\sqrt6+\sqrt2}{4}