Question

divergent or convergent i will type it mathematical form now , wait..

Answer 1

ok i am waiting

Answer 2

\[\sum_{1}^{\infty}(\cos^2n) \div n^(3\div2)\]

Answer 3

n^(3/2)

Answer 4

\[\sum_{n=1}^{\infty}\frac{\cos^2n}{n^{3/2}}\]

Answer 5

that
?

Answer 6

yup

Answer 7

converges

Answer 8

zarkon is here

Answer 9

why

Answer 10

comparison test

Answer 11

compare with what

Answer 12

\[0\leq\sum_{n=1}^{\infty}\frac{\cos^2n}{n^{3/2}}\leq\sum_{n=1}^{\infty}\frac{1}{n^{3/2}}\]

Answer 13

ok

Answer 14

\[\sum_{n=1}^{\infty}\frac{1}{n^{3/2}}\]

converges

Answer 15

thank u

Answer 16

np