defence exam Army Havildar SAC Mock Test Series 2025 Mathematics Integral Calculus Definite Integrals
\(\rm \int_0^{\frac{\pi}{4}}\sin^3 \theta\ d\theta=?\)
1
\(\rm \frac{2}{3}-\frac{5}{6\sqrt2}\)
2
\(\rm- \frac{2}{3}+\frac{5}{6\sqrt2}\)
3
\(\rm \frac{2}{3}+\frac{5}{6\sqrt2}\)
4
\(\rm- \frac{2}{3}-\frac{5}{6\sqrt2}\)