Use the limit definition to find partial derivative of f(u, v, w) = u? nuv...

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Use the limit definition to find partial derivative of f(u, v, w) = u? – nuv + (n + 1)v² – (n + 2)uw + (n + 3)vw² – (n + 4)u + (n+ 5)v - (n + 6)w, Where n is 14. (b) Find the partial derivative at point (u, v) = (-4,0) of w = In(xa + y8 + za),x = ue"sinu, y %3D ue"cosu, z = ue". where a and ß are a=8, B = 4. Use the limit definition to find partial derivative of f(u, v, w) = u? – nuv + (n + 1)v² – (n + 2)uw + (n + 3)vw² – (n + 4)u + (n+ 5)v - (n + 6)w, Where n is 14. (b) Find the partial derivative at point (u, v) = (-4,0) of w = In(xa + y8 + za),x = ue"sinu, y %3D ue"cosu, z = ue". where a and ß are a=8, B = 4.