hello. this is my professor suction however using symbolab it shows that the series is divergent when it's compared to 1 (harmonic). Can you explain which is correct?

W an = en = 2 ( 2 + 1 ) and on nel n' +1 72 + 1 (1 + 1) 2 + 1 lim lim lim / 203 + 4 7 2 + 4 2 lim (2+ 21+ 2).21 7 -7 0 (12 + 1) (27+ 2 ) =) 250 2 13/ 4 2 12 + 2 2 + 21 2 ( 2 1 1 ) (+ 1) 2 + 1 converses by limit comp test