Within , at which of the following angles does attain its maximum…

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

Problem

Within

0^{\circ} \leq \theta < 360^{\circ}

, at which of the following angles does

6\sin\theta - 8\cos\theta

attain its maximum value? (a)

90^{\circ}

(b)

233^{\circ}

(c)

143^{\circ}

(d)

37^{\circ}