Answers to Practice Exam 2

1. 3.0074
2. 0.3417
3. x = 0,2 mins; x = 3 max
4. always increasing, concave up for x < 0, concave down for x > 0
5. length = width = 500
6. always decreasing, concave up x > 1, concave down x < 1
7. a) 1.5x² + 4x + C b) 5tan(x) + C c) -e^-x + sin(x) + C d) ln(x) - 1/x + C
8. c = 2^(1/2)
9. (a) 1 (b) 0