A Level

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

Problem

Evaluate

(1+\tan^{2}{30^\circ})\cos^{2}{30^\circ}

. (a)

\dfrac{1}{3}

(b)

\dfrac{\sqrt{3}}{2}

(c)

1

(d)

\dfrac{4}{3}