KCET2007MathematicsIndefinite Integration
The value of e^ x (x⁵+5 x⁴+1 ) d x is
Options
- Ae^ x x⁵+c
- Be^ x x⁵+e^ x +c
- Ce^ x+1 x⁵+c
- D5 x⁴ e^ x +c
Correct answer
B. e^ x x⁵+e^ x +c
Step-by-step solution
Let I= e^ x (x⁵+5 x⁴+1 ) d x aligned &= e^ x x⁵ d x+5 e^ x x⁴ d x+ e^ x d x &=x⁵ e^ x - 5 x⁴ e^ x d x+5 e^ x x⁴ d x+e^ x &=x⁵ e^ x +e^ x +c aligned