Hello, I am trying to understand how this was differentiated:

1/3x^3

I would have thought:

-3x^-3

9x^-4

9/x^4

but I know this wrong.

Can someone please point out where I am going wrong ?

Thanks kindly.

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- Apr 28th 2011, 07:17 PMfran1942differentiating
Hello, I am trying to understand how this was differentiated:

1/3x^3

I would have thought:

-3x^-3

9x^-4

9/x^4

but I know this wrong.

Can someone please point out where I am going wrong ?

Thanks kindly. - Apr 28th 2011, 07:35 PMTheChaz
- Apr 29th 2011, 06:19 AMHallsofIvy