Question: In problems 14, 15, and 16, find the (first) partial derivatives of the function: Problem 14. (11.3/16) f(x, y)=x y' +8xy Problem 15. (11.3/20) z

In problems 14, 15, and 16, find the (first) partial derivatives of the function: Problem 14. (11.3/16) f(x, y)=x y' +8xy Problem 15. (11.3/20) z = tan xy Problem 16. (11.3/25) f(r,s) = rIn(r2 +s2 )

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