Posted by **Febby-1** on Friday, April 13, 2007 at 9:09am.

Please do help solve the followings

1) Integrate e^4 dx

2) Integrate dx/sqrt(90^2-4x^2)

3) Integrate (e^x+x)^2(e^x+1) dx

4) Integrate xe^x2 dx

e^4 is a constant.

3) let u= e^x + x

du= (e^x + 1)dx

4) let u= x du=dx

v= e^x dv= e^x dx

## Answer This Question

## Related Questions

- Integral calculus - Please can anyone help with the following problems - thanks...
- Calculus - 6.] Replace the integral in exercise 5 (int. (1/ 1 – t) dt a = 0, b...
- calculus - 1) Integrate Cos^n(x) dx 2) Integrate e^(ax)Sinbx dx 3) Integrate (...
- Calc 1 - integrate from 0 to pi/4 (sec^2x)/((1+7tanx)^2)^1/3 integrate form pi^2...
- integrate - integrate du/3u and integrate x/x^2 dx it might be simple...i just ...
- calculus help please - dy/dx = 2y^2 Integrating...y=2/3 y^3 + C put 1,-1 into ...
- calculus 2 - Justify, with a written explanation or a mathematical reasoning ...
- Calculus AB - Please help me integrate this equation using partial fractions: ...
- Calculus - Calc length of arc of y=ln(x) from x=1 to x=2 ---- So far: Definite ...
- Integration-Calculus - How do I integrate this? constant(1- z/[sqrt (z^2 + ...

More Related Questions