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How do I do the following

Find the interval on which the curve

[tex]y = \int_x^0 \frac{1}{1 + t + t^2} dt[/tex]

is concave upward.

any help would be great.

P

Just in case Latex does not show up

x

Large S 1/1(1 + t + t^2) dt

0

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# Homework Help: Find interval

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