defence exam SSB Head Constable (Communication) 2023 Mock Test Mathematics Integral Calculus Indefinite Integrals
\(\int\frac{x^2-1}{x^4+x^2+1}dx = ?\)
1
\(\frac{1}{2}log|\frac{x^2+x+1}{x^2-x+1}|+C\)
2
\(\frac{1}{2}log|\frac{x^2-x+1}{x^2+x+1}|+C\)
3
\(\frac{1}{2}log|\frac{x^2-1}{x^2+x+1}|+C\)
4
\(\frac{1}{2}log|\frac{x^2-x+1}{x^2+1}|+C\)