For an acute angle

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

Problem

For an acute angle

\theta

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

and

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

. What is

\sin\theta

? (a)

\dfrac{3}{4}

(b)

\dfrac{\sqrt5}{5}

(c)

\dfrac{3}{5}

(d)

\dfrac{4}{5}