Tests for series

Exercise I: Basic tests for series Say whether each of the following series is absolutely convergent, conditionally convergent, or divergent. Show your computations and tell which test you use. too cos n too 1 ) _ 1 too ann 2 3) 2 ( n!) n 23 2) E( -1 )n n! 4 ) _ n=1 n=1 Vn2 + n n=1 n>1