What the integral of e^2x*x? (limits 0,1)

Whenever you see an integral with a product as the integrand, check if integration by parts works.
That is,
Int(v(x)*u'(x)) = u(x)v(x)-int(u(x)v'(x))
So you should see that its easier to call v(x)=x and u'(x)=e^2x
So then we get v'(x)=1 and u(x)=1/2
e^2x
So therefore using the by parts formula the integral goes to
1/2xe^2x-int(1/2e^2x) = 1/2xe^2x -1/4e^2x
when you apply the limits you get (e^2+1)/4

Answered by Oliver O. Maths tutor

3213 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find the indefinite integral of ( 32/(x^3) + bx) over x for some constant b.


Integrate (3x^2 - (1/4)x^-2 + 3) dx


Use logarithms to solve the equation 3^(2x+1) = 4^100


Points A and B have coordinates (–2, 1) and (3, 4) respectively. Find the equation of the perpendicular bisector of AB and show that it may be written as 5x +3 y = 10.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences