Question: QUESTION 2 Calculate the gradient from the point ( 2 , 1 , - 1 ) of the function = ( x + 2 y

QUESTION 2
Calculate the gradient from the point (2,1,-1) of the function =(x+2y+z)2-(x-y-z)2 and calculate the directional derivative at the same point in the direction of the vector T=i-4j+2k.
(10 marks)
QUESTION 2 Calculate the gradient from the point

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