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Quick question...so when solving this equation for example do

F(x,y)= 2x^2 -xy+y^2-x-5y+8

In respect to x is this right??? do you keep the x from the xy and the x before -5y...??? please help
= 4x-x=0

2006-10-09 09:08:02 · 2 answers · asked by Anonymous in Science & Mathematics Mathematics

I need more help...what is the partial derivative of this equation with respect to x.

2006-10-09 09:18:08 · update #1

2 answers

To differentiate with respect to x here is called partial differentiation as there are to variables so

df/dx = 4x - xdy/dx -x + 2ydy/dx -1 -5dy/dx

so

df/dx = (dy/dx)(2y - x -5) + 3x -1

2006-10-09 09:12:24 · answer #1 · answered by ? 7 · 0 0

The partial derivative of a function f(x,y) in respect to x is obtained using the same rules for derivative of a function of one variable, but you may consider y as a constant.

In you function we have:

dF(x,y)/dx = 4x -y -1

2006-10-09 16:27:59 · answer #2 · answered by vahucel 6 · 1 0

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