Hi everyone,
First of all, this isn't really a "homework", I've completed my calculus course and I'm just curious about this problem.
1. The problem statement, all variables and given/known data
[itex]\int\frac{x^{2}}{(xsinx+cosx)^{2}} dx[/itex]
2. Relevant equations
Trigonometric substitutions, integration by parts maybe?
3. The attempt at a solution
This is a solved problem.
How does [itex]\int\frac{x^{2}}{(xsinx+cosx)^{2}} dx[/itex] become [itex]\int xsecx \frac{xcosx}{(xsinx+cosx)^{2}} dx[/itex]?
First of all, this isn't really a "homework", I've completed my calculus course and I'm just curious about this problem.
1. The problem statement, all variables and given/known data
[itex]\int\frac{x^{2}}{(xsinx+cosx)^{2}} dx[/itex]
2. Relevant equations
Trigonometric substitutions, integration by parts maybe?
3. The attempt at a solution
This is a solved problem.
How does [itex]\int\frac{x^{2}}{(xsinx+cosx)^{2}} dx[/itex] become [itex]\int xsecx \frac{xcosx}{(xsinx+cosx)^{2}} dx[/itex]?
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