əz Q3.If Z= f(x,y)=4e* ln(y), and x = ln (u cosv), y = u sin v, use chain rule to find : 2 ди Q4. Evaluate: (xy²) dx dy -√1-6-1)³ and Əv

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A: Since you have asked multiple questions in single request.so we will answering only first question.

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A: To find the correct option.

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