∫ (x^2 + 1)e^x / (x + 1)^2 dx = f(x)e^x + c, Where C is a constant, then

Question

 \(∫\cfrac{(x^2+1)e^x}{(x+1)^2}\)  dx = f(x)e^x + c, Where C is a constant, then \(\frac{d^3f}{dx^3}\)  at x = 1 ​​​​​​is equal to : 

(A) -3/4 

(B) 3/4 

(C) -3/2

(D) 3/2

Answer 1

Correct option is (B) 3/4