• Oct 14th 2008, 06:04 PM
Legendsn3verdie
i m having problems integrating this:

(integral) tanxcscx

i m pretty sure u gotta multiply it by a one, like a secx/secx or something i cant figure out what to mulitply it by to integrate it.

and also i m having problems with this

2x^3-7x^2+7x / 2x-5

u gotta divide these out, i m pretty sure i m getting wrong answer.. any helpp appreciated.!
• Oct 14th 2008, 06:10 PM
Jhevon
Quote:

Originally Posted by Legendsn3verdie
i m having problems integrating this:

(integral) tanxcscx

i m pretty sure u gotta multiply it by a one, like a secx/secx or something i cant figure out what to mulitply it by to integrate it.

or note that $\displaystyle \tan x \csc x = \frac {\sin x}{\cos x} \cdot \frac 1{\sin x} = \sec x$

and you know $\displaystyle \int \sec x ~dx$, right?

Quote:

and also i m having problems with this

2x^3-7x^2+7x / 2x-5

u gotta divide these out, i m pretty sure i m getting wrong answer.. any helpp appreciated.!
start by dividing the polynomial using long division. see what you end up with