f:R—>R, f(x)=x²-2x+5,Determine the intervals in which F is increasing and the intervals in which F is decresing.
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Dear student:
Given:F:R—>R
f(x)=x²-2x+5
For determining the intervals in which F is increasing and decreasing.
Find derivative of f(x)
then see the derivative in which f is positive and negative.
If it is positive then f is increasing
And if it is negative then f is decreasing.
See the attachment.
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In the attachment I have answered this problem. Concept: 1. If the derivative of f(x) is positive for all x in the interval I then f(x) is increasing in I. 2. If the derivative of f(x) is negative for all x in the interval I then f(x) is decreasing in I. See the attachment for detailed solution.
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