Mastering Integration by Parts: Tips and Tricks for Solving Difficult Problems

[Spectre32]

I'm stuck on this one problem. If anyone can aid me, I would greatly appericate it.


http://home.comcast.net/~personalcomp1/Impossible_calc_problem.JPG

I scaned in the problem sooo there's the place to view it.



Thanks

 

[Parth Dave]

you can write it as sec^(n-2)x*sec^2xdx and see where that takes you.

 

[Spectre32]

Roger that.. i'll do that and see where that takes me.

 

[maverick280857]

Here's the neater version (avoid the f(x) and g(x)'s when solving problems) of the integration by parts rule:

$$\int u dv = uv - \int v du$$

Now follow Parth Dave's advice. I mentioned this as some old books still use f(x) and g(x) instead of the neater looking u and v. (Oh well, you might use f and g instead of u and v ;-))

Cheers
Vivek