- #1
Pseudo Statistic
- 391
- 6
Hi,
I'm having a bit of trouble evaluating this integral: (This is not a homework problem btw)
Integral between Pi and 0 (x sin x)/(1 + cos^2 x) d x
I don't even know where to begin with the substitutions or anything... I was thinking the denominator could be sin^2 x... only when I realized this is trig and not hyperbolic. :(
Also, something in my book:
Integral (2t^2 + 3t*t^3) d(t^2)
This was after the substitution of dy to d(t^2) when dealing with a line integral; I don't understand... how do you integrate this?
Thanks for any ideas.
I'm having a bit of trouble evaluating this integral: (This is not a homework problem btw)
Integral between Pi and 0 (x sin x)/(1 + cos^2 x) d x
I don't even know where to begin with the substitutions or anything... I was thinking the denominator could be sin^2 x... only when I realized this is trig and not hyperbolic. :(
Also, something in my book:
Integral (2t^2 + 3t*t^3) d(t^2)
This was after the substitution of dy to d(t^2) when dealing with a line integral; I don't understand... how do you integrate this?
Thanks for any ideas.