How do I determine the convergence of -LSB- math -RSB- \ frac -LCB- 3 + -LCB- 2 ^ -LCB- - n -RCB- -RCB- -RCB- -LCB- n ^ -LCB- -1 / 2 -RCB- -RCB- ? -LSB- / math -RSB- ?
How do I determine the convergency of -LSB- math -RSB- \ frac -LCB- -LCB- n ^ 2 -RCB- +1 -RCB- -LCB- -LCB- n ^ 3 -RCB- +1 -RCB- ? -LSB- / math -RSB- ?