Is that correct my resolution? (First derivative test-Increasing and decreasing functions)
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Is that correct my resolution? (First derivative test-Increasing and decreasing functions)

[From: ] [author: ] [Date: 11-10-17] [Hit: ]
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Find the local and absolute maxima or minima for this function.

a) f(x)=x²+1

f'(x)=2x

2x=0
x=0

(-infinity,0)-> 2*(-1) decreasing
(0,+infinity)-> 2*(1) increasing

Conclusion: It has a local and a global minima of 1 at x=0

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Yes- good job!

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Yes
1
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