# How?

3 replies to this topic

### #1 Behnoud

Behnoud

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Posted 02 October 2006 - 04:24 PM

How I can detach fraction like this:
1/(x^2-1)=A/(x-1)+B/(x+1)
therefore A=1/2 and B=-1/2 ?
Sorry for my POOR english!

### #2 The_AFX_Master

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Posted 02 October 2006 - 05:54 PM

Use PropFrac command

### #3 Eisuke

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Posted 03 October 2006 - 05:11 AM

How I can detach fraction like this:
1/(x^2-1)=A/(x-1)+B/(x+1)
therefore A=1/2 and B=-1/2 ?
Sorry for my POOR english!

Expand( 1/(x^2-1), x) gives percial fraction.

### #4 Behnoud

Behnoud

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Posted 03 October 2006 - 08:47 AM

Thanks a lot.
I have used both many years age