For an acute angle

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

Problem

For an acute angle

\theta

, the equation

5\sin^2\theta+3\cos^2\theta=4

holds. Find

\sin \theta

. (a)

\dfrac12

(b)

\dfrac{\sqrt2}{2}

(c)

\dfrac35

(d)

\dfrac{\sqrt3}{2}