Math, asked by shruthisantoshmenon, 1 year ago

1.2 + 2.3 + 3.4 +....+ (n+1)= n(n+1)(n+2)/3

Answers

Answered by NIKHILKUMAWAT78

5

Answer:

6.9 is the answer of this question

Answered by Anonymous

4

Answer:

6.9 is answer of your qwetion

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