Cameron L.

asked • 03/11/21

Which of the following series is/are convergent?

Which of the following series is/are convergent?

  1. the summation from 1 to infinity of the quotient of n minus 1 and the quantity 2 times n plus 1
  2. the summation from 1 to infinity of the quotient of 5 times the quotient of 2 to the nth power and 3 to the nth power
  3. the summation from 1 to infinity of the quotient of the cosine of n and n squared
A I and II
B II and III
C All of them
D None of them


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