Posted by **rachel** on Wednesday, July 2, 2014 at 3:57pm.

what is the integral from 2 to 1 of 15sqrt(4x^2-3) dx

- math -
**Steve**, Wednesday, July 2, 2014 at 5:23pm
look up you standard form for

∫√(u^2-a^2) du

Now, if you let u = 2x, you have

u^2 = 4x^2

du = 2 dx, so dx = du/2

Also, let a = √3

So, now your integral is

15/2 ∫√(u^2-a^2) du

and just go for it.

## Answer This Question

## Related Questions

- calc asap! - can you help me get started on this integral by parts? 4 S sqrt(t) ...
- Math/Calculus - How would I solve the following integral with the substitution ...
- calc - how do you start this problem: integral of xe^(-2x) There are two ways: 1...
- Calculus - Find the volume of the solid whose base is the region in the xy-plane...
- Integral - That's the same as the integral of sin^2 x dx. Use integration by ...
- Math - Find the integrals. (show steps) (integral sign) xe^(4x^2) I think this ...
- Calculus II/III - A. Find the integral of the following function. Integral of (x...
- math - LEt f and g be continous functions with the following properties i. g(x...
- calculus (please with steps and explanations) - consider the function f that is ...
- math - Evaluate the given integral, where C is the circle with positive ...

More Related Questions