BITSAT2023MathematicsIndefinite IntegrationActual
x+3 (x+4)^2 e^x d x is equal to
Options
- Ae^x ( 1 x+4 )+C
- Be^ -x ( 1 x+4 )+C
- Ce^ -x ( 1 x-4 )+C
- De^ 2 x ( 1 x-4 )+C
Correct answer
A. e^x ( 1 x+4 )+C
Step-by-step solution
Suppose, I= x+3 (x+4)^2 e^x d x= (x+4) 1 (x+4)^2 e^x d x = e^x (x+4) - e^x (x+4)^2 d x = e^x ( 1 (x+4) - 1 (x+4)^2 ) d x =e^x 1 (x+4) +C [ e^x f(x)+f^ (x) d x=e^x f(x)+C ]