engineering recuitment NCRTC Station Controller Mock Test 2021 Mathematics Integral Calculus Definite Integrals
\(\rm \displaystyle\int_0^1 x \tan^{-1} xdx =\)
1
\(\rm \dfrac{\pi}{4}+\dfrac{1}{2}\)
2
\(\rm \dfrac{\pi}{4}-\dfrac{1}{2}\)
3
\(\rm \dfrac{1}{2}+\dfrac{\pi}{4}\)
4
\(-\rm \dfrac{\pi}{4}-\dfrac{1}{2}\)