# Calc

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suppose that f(x) is a function of f(125)=52 and f'(125)=4. estimate f(123.5)

• Calc -

f(x+dx) = f(x) + f'(x) dx
f(125) = 52
f'(125) = 4

f(125-1.5)= 52 + 4(-1.5)

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