defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Mathematics Integral Calculus Definite Integrals
\(\rm\int \limits_{-1}^1 {2x+1\over\left({x^2+x+1}\right)^2}dx\) का मान क्या है?
1
\(-{1\over3}\)
2
\(1\over3\)
3
\(2\over3\)
4
\(-{2\over3}\)