Recent content by jlu

  1. J

    Testing convergence of sequence

    i used p-series test for the first one and root test for the second one. i stand to be corrected if i used the wrong rules
  2. J

    Testing convergence of sequence

    how can i can the convergence of sum[sin (0.4)n / n pi]2 and that sum[sin (0.4)n / n pi] diverges, n is between -infinity and + infinity
  3. J

    Does the Sequence sqrt[n]{3^n + 5^n} Converge or Diverge?

    how can i proof that ([sin0.4n][/npi])2 converges and ([sin0.4n][/npi]) diverges? n is between -infinity and +infinity