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Find the partial derivative with respect to x of the function 4x2V4y 4V5 z 3. Find the partial derivative with respect to z of the function (y 1)%.e(-2 2+3) log(2 x 3). O 2 (-3; _ 1)%et-2z+3)log(2x 3) O _ cat2 2+3) log(2 163} 4 5 (yl} 5 l O 2 (_y_1); eLZ 2+3] 2 x3 O 4 e\"2 2+2.) 4 5 {2 1-3)(-y-1) 5 How many second partial derivatives will a function of three variables have, assuming all the second partial derivatives exist? 09 O3 O4 012 Question 4 25 pts Let f be a function of several variables. To nd the partial derivative of f with respect to some variable, we consider the other variables as... 0 dependent variables. 0 independent variables. 0 xed constants