find the derivative of the function at P in the direction of u. f(x, y) = 2xy – 3y². Po(5, 5). u = 4i + 3j %3D

Q: Can you help me with this problem step by step?

A: The given equation,

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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: As per guidelines we can solve only one question at a time so if you need more answers kindly repost…

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A: Since you have asked multiple question, we will solve the first question for you. If you want any…