Posted by Andy on Friday, May 24, 2013 at 4:18pm.
f(x)is a function differentiable at x=1 and f'(1)=1/8.
what is the value of f(x)f(1)
f'(x) denotes the derivative of f(x)

Maths  MathMate, Friday, May 24, 2013 at 7:35pm
For x near 1, you can use linearlization, which is
f(x)=f'(1)(x1)+f(1)
=(1/8)x+f(1)
Therefore, within the errors of the linearization,
f(x)f(1) = (x1)/8 (approximately)
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