Thread: partial fractions

how do I get the answer shown in the attached problem? when I tried it out, I couldn't get the numerator to 1.

Thanks!

First, factor your denominator.

remember that:



Can you do it now?

Originally Posted by calculus0

how do I get the answer shown in the attached problem? when I tried it out, I couldn't get the numerator to 1.

Thanks!

It will be easier to address your specific trouble if you show all of your working.

We write



With a bit of algebraic manipulation of the above equality(actually identity), we can find out that

.(There are several ways to do this. One of them is writing the right hand side as a single fraction and we get an equation by equating the denominator with 2)

So we have