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