defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Integral Calculus Indefinite Integrals
What is the value of \(\rm \int \left( \frac{1}{\cos^2 x} - \frac{1}{\sin^2 x} \right) dx \) ?
1
2 cosec 2x + C
2
-2 cot 2x + C
3
2 sec 2x + C
4
-2 tan 2x + C