- #1
coregis
- 17
- 0
Here's an easy one, I know the answer but can't get there...
[tex]\int\frac{1}{(x^2+z^2)^\frac{3}{2}}dx[/tex]
na
I know this approach is wrong, but why? Or am I not finishing somehow?
[tex]\int\frac{1}{x^3}dx+\int\frac{1}{z^3}dx[/tex]
[tex]\int{x^{-3}}dx+\int{z^{-3}}dx[/tex]
[tex]\frac{x^{-2}}{-2}+xz^{-3}[/tex]The correct answer should be:
[tex]\frac{x}{z^2(x^2+z^2)^{1/2}}[/tex]
Homework Statement
[tex]\int\frac{1}{(x^2+z^2)^\frac{3}{2}}dx[/tex]
Homework Equations
na
The Attempt at a Solution
I know this approach is wrong, but why? Or am I not finishing somehow?
[tex]\int\frac{1}{x^3}dx+\int\frac{1}{z^3}dx[/tex]
[tex]\int{x^{-3}}dx+\int{z^{-3}}dx[/tex]
[tex]\frac{x^{-2}}{-2}+xz^{-3}[/tex]The correct answer should be:
[tex]\frac{x}{z^2(x^2+z^2)^{1/2}}[/tex]
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