Differential Calculus

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y = 1 + (x-1)^(1/2)

Considering the interval (2,4), calculate
delta(y) and dy.

would delta(y) be:

delta(y) = f(4) - f(2)
= (1 + squr(3) ) - 2
= squr(3) - 1

and dy is 1/(2 squr(x-1)) dx

Thank you

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