the partial derivatvie with respect to y is

is that right?

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- Sep 18th 2009, 07:30 PMel123Partial derivative

the partial derivatvie with respect to y is

is that right? - Sep 18th 2009, 07:35 PMProve It
- Sep 18th 2009, 07:39 PMel123
but i thought you treat x as a constant so its derivative is 0?

- Sep 18th 2009, 07:44 PMProve It
- Sep 18th 2009, 07:46 PMel123
true to that , thank you very much !