Find the first partial derivatives of the function. f(x, y, z, t) = xy9 t + 9z fx(x, y, z, t) = fy(x, y, z, t) = fz(x, y, z, t) = ft(x, y, z, t) =

Given that, f(x,y.z,t)={xy^9}/{t+9z} Differentiating in the above expression we have

Resuelto Find the first partial derivatives of the

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