If and for an acute angle

MATHEMATICS · Single correct · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

\tan\theta = \dfrac{3}{4}

and

\cos\theta = \dfrac{4}{5}

for an acute angle

\theta

, find

\sin\theta

. (a)

\dfrac{9}{25}

(b)

\dfrac{3}{5}

(c)

\dfrac{15}{16}

(d)

\dfrac{4}{5}