Question: 8. (5 pts) Let F(x) = / -t - 1) dt (a) (2 pt) Find critical points of F(x). (b) (3 pts) Find the intervals

8. (5 pts) Let F(x) = / -t" - 1) dt (a) (2 pt) Find critical points of F(x). (b) (3 pts) Find the intervals where F is concave up and the intervals where F is concave down. (hint: differentiate the formula for F'(x) to get F"(x))

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