(4 points) Let f(x, y) = ln(x)e, where z = r cos(0) and y = r...

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(4 points) Let f(x, y) = ln(x)e", where z = r cos(0) and y = r sin(0). Find YOUR FINAL ANSWER MUST BE IN TERMS OF ONLY T AND 0. af af and dr 00 (4 points) Let f(x, y) = ln(x)e", where z = r cos(0) and y = r sin(0). Find YOUR FINAL ANSWER MUST BE IN TERMS OF ONLY T AND 0. af af and dr 00