defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Differential Calculus Differentiation by substitution
यदि \(\int {\frac{{dx}}{{x - {x^3}}} = A.} \) \(ln\left| {\frac{{{x^2}}}{{1 - {x^2}}}} \right| + c\), तो A का मान किसके द्वारा दिया जाता है?
1
2
2
\(\frac{1}{2}\)
3
\(\frac{1}{{\sqrt 2 }}\)
4
\(\frac{1}{4}\)