যদি $\sin^2 \theta + 2x \cos^2 \theta = 1$ হয়, তবে $x$-এর মান হবে _____
Sutanu Hait Answered question February 24, 2025
$\sin^2 \theta + 2x \cos^2 \theta = 1$
$Or, 2x \cos^2 \theta =1- \sin^2 \theta$
$Or, 2x \cos^2 \theta =\cos^2 \theta$
$Or, 2x=1$
$Or, x=\frac{1}{2}$
Moumita De Changed status to publish February 24, 2025