Hey guys, how would you do these? For all of these I can't figure out a way to cancel out the x's after I find u and du.
(x+1)^3/(x^2)dx
(x+1)/(x^2) dx
1/(1+4(x^2)) dx
x(x-10)^10 dx
(cosx)/(1+(sinx)^2) dx
(1+tanx)^3/(cosx)^2
Thanks
It's not clear what you did here. If you want to integrate , you can just expand the numerator and then split it up into a sum. Then you should be able to apply the general formula for polynomial integrands.
Wait, so you mean do: x^3/x^2 + 3x^2/x^2 + 3x/x^2 + 1/x^2 ?
What would be the answer to that then?
You don't see how to integrate that? If you're studying the substitution rule, I assume you must be familiar with the basic methods of integral calculus. Just use the sum rule, and integrate each term using the formula
You don't see how to integrate that? If you're studying the substitution rule, I assume you must be familiar with the basic methods of integral calculus. Just use the sum rule, and integrate each term using the formula