Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Sequences and Series Special Series
Find the sum of the series 2 + 6 + 12 + 20 + 30 +.....+ upto n terms
1
n(n+2)
2
\(\frac{{n\left( {n + 1} \right)\left( {n + 2} \right)}}{2}\)
3
\(\frac{{n\left( {n + 1} \right)\left( {n + 2} \right)}}{3}\)
4
More than one of the above
5
None of the above