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Statement of a problem № m439

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Find expressions for the partial derivatives of the following functions: a. f(x,y) = f (g(x)k(y), g(x) + h(y) b. f(x,y,z) = f(g(+ y), h(y + z)) c. f(x,y,z) = f(xy, yz, zx) d. f(x,y) = f(x,g(x), h(x,y))




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