The problem is

I used the qoutent rule and got

I ended with

This work isn't looking like the answer at all. Where am I going wrong?

Thanks

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- Aug 5th 2009, 09:37 AMDarkhrse99Where am i going wrong on taking the derivative?
The problem is

I used the qoutent rule and got

I ended with

This work isn't looking like the answer at all. Where am I going wrong?

Thanks - Aug 5th 2009, 09:41 AMAlephZero
- Aug 5th 2009, 09:58 AMDarkhrse99
The middle work I left out is

doing subtraction gives you

I did the multiplication in the numerator. - Aug 5th 2009, 10:12 AMAlephZero
- Aug 5th 2009, 10:16 AMJameson
- Aug 5th 2009, 10:43 AMDarkhrse99
- Aug 5th 2009, 10:50 AMDarkhrse99
- Aug 5th 2009, 10:54 AMDarkhrse99
- Aug 5th 2009, 11:09 AMAlephZero
- Aug 5th 2009, 11:12 AMDarkhrse99
- Aug 5th 2009, 11:20 AMAlephZero
- Aug 5th 2009, 11:26 AMDarkhrse99
Is the answer ?

- Aug 5th 2009, 11:38 AMskeeter
- Aug 5th 2009, 11:40 AMAlephZero
No. You have asked where your calculations went wrong, and I have shown you over and again where it is. As I said, you have not done the multiplication in the numerator correctly, because you've neglected to distribute the -1. So, once again, the numerator is

. - Aug 5th 2009, 11:43 AMDarkhrse99