$\int\limits_0^{\pi / 2} \frac{d x}{a^2 \cos ^2 x+b^2 \sin ^2 x}=$
Answer & explanation
Correct answer: option 2
Divide Num. and Den. by cos2x and put tan x = t etc.
Hence (2) is the correct answer.
$\int\limits_0^{\pi / 2} \frac{d x}{a^2 \cos ^2 x+b^2 \sin ^2 x}=$
Correct answer: option 2
Divide Num. and Den. by cos2x and put tan x = t etc.
Hence (2) is the correct answer.