Question: The last digit is 2 Replace a in this question with the last digit of your student number. Let f(x, y) = x'+ sin(ry). (a)

The last digit is 2

Replace a in this question with the last digit of your student number. Let f(x, y) = x"'+ sin(ry). (a) Find the first order partial derivatives of f (make sure you show all appropriate working). (b) Find the directional derivative of f at the point with co-ordinates (1, 0) in the direction of the vector (-2, 5)

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