Question: If y = x2 - 3, find the values of y and dy in each case. (a) x = 2 and dx = x =

If y = x2 - 3, find the values of Δy and dy in each case.
(a) x = 2 and dx = Δx = 0.5
(b) x = 3 and dx = Δx = - 0.12

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