NDA2015MathematicsIndefinite IntegrationActual
What is x e^x d x (x+1)^2 equal to? where c is the constant integration.
Options
- A(x+1)^2 e^x+c
- B(x+1) e^x+c
- Ce^x x+1 +c
- De^x (x+1)^2 +c
Correct answer
C. e^x x+1 +c
Step-by-step solution
aligned & x e^x (1+x)^2 d x & = e^x [ 1 1+x - 1 (1+x)^2 ] d x & = e^x 1+x +C e^x (f(x)+f^ (x) ) d x=e^x f(x) aligned