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September 14th, 2014, 12:09 AM   #1
Newbie

Joined: Sep 2014
From: Karachi

Posts: 13
Thanks: 1

A New member

Hello everybody!

I am a new member of this forum and this is my first participation.

At the moment, I am looking for the solution for the following:

Code:
[x^(-m) - (a^(-m)]/(x - a)
I intend to change the -ve indices into +ve.

Thanks, in anticipation, for any help.

Regards.
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Last edited by Raabi; September 14th, 2014 at 12:46 AM.

 September 14th, 2014, 01:05 AM #2 Senior Member   Joined: Jul 2014 From: भारत Posts: 1,178 Thanks: 230 $\displaystyle [\frac{x^{-m}-a^{-m}}{x-a}]$ $\displaystyle =[\frac{\frac{1}{x^m}-\frac{1}{a^m}}{x-a}]$ $\displaystyle =[\frac{\frac{a^{m}-x^{m}}{x^{m}a^{m}}}{x-a}]$ $\displaystyle =[\frac{a^{m}-x^{m}}{a^{m}x^{m}}*\frac{1}{x-a}]$ Now simply multiply. Can you proceed ? Last edited by Prakhar; September 14th, 2014 at 01:13 AM.
 September 14th, 2014, 01:10 AM #3 Newbie   Joined: Sep 2014 From: Karachi Posts: 13 Thanks: 1 Thank you so much, prakhar! Have a nice time.

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