Answer:
integration of the first question would be e^x+(x^(e+1))/e+1
putting limit e+(1/(e+1))-1
as that of second question is
step 1: assume π/x=t differentiate wrt x -π/x²=dt/dx
dx/x²=-dt/π
then
it would become
-(1/π)sint
now integrate sin
-(-(1/π)cost)+c
(1/π)cost+c
put value of t
(1/π)cos(π/x)+c
