engineering recuitment NCRTC Station Controller Mock Test 2021 Mathematics Integral Calculus Indefinite Integrals
\(\rm \displaystyle \int \dfrac{1}{x}(\log x)\ dx\) is equal to:
1
log (log x) + C
2
\(\rm \dfrac{1}{2}(\log x)^2+C\)
3
\(\rm -\cot \dfrac{x}{2}+C\)
4
\(\rm \dfrac{x}{2}+C\)