Mini quiz #2

(Sept.25.2000)

  1. Find the sum of .(Do not simplify your answer.)

    2. Solution:

  2. Recall that . Find the sum of .

    3. Solution:

  3. It is known that converges. Find
.

Solution: since converges.

4. True or false ? (Do not justify your answer).

(a) If converges then converges. True

(b) If converges then converges. True

5.Which of the following series diverges ? (a) ,

(b) , (c) . Do not justify. All diverge.