integrate-w-r-t-x-xe-x-1-x-2-dx-

Question Number 43156 by MASANJA J last updated on 07/Sep/18

i n t e g r a t e w . r . t x

\int \frac{{x e}^{x}}{\sqrt{1 + x^{2}}} d x

Answered by tanmay.chaudhury50@gmail.com last updated on 09/Sep/18

x = t a n α d x = {s e c}^{2} α d α

\int \frac{t a n α . e^{t a n α} . {s e c}^{2} α}{s e c α} d α

\int e^{t a n α} (t a n α s e c α) d α

\int e^{t a n α} d (s e c α)

c o n t d \dots