Nanoman

Check my work:
Inflection points
Note: I think I may have found the possible inflection points. How do I check to make sure they are the right points? I know that they are this time, but the points are right next to each other.

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Yahoo!

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Inflection :
f''(x) = 0

Nanoman

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I took the second derivative, and set it to 0. I got -1,0,and 1.

Nanoman

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So my answer is 3.

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60 x^3 - 60x = 0 ryt ?

Nanoman

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right.

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x^2 = 1

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x = 1 or -1

Nanoman

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Couldn't 0 also be a root?

Nanoman

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@Yahoo!

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is 0^2 = 1 ???

hba

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No lol.