Determine the rate of chenge in the ar direction of the scaler function U- sin e and calealate it at Hhe point P(5, m/4, /2)

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A: Here I am attaching image so that you understand each and every step.

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A: Since multiple questions given , firs question is answered step by step. Please repost for more help…

Q: Use an appropriate local linear approximation to estimate the value of the given quantity. Round…

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Q: find the average rate of change of the function over the given interval or intervals.

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