Math, asked by dhonidharamveer, 10 months ago

Sum of series : 1+2+3+ …………………… + n is

()
(+1)
2

() ( + 1)
()
(+1)(+2)
2

() none of these.

Answers

Answered by Adithya8055

7

Step-by-step explanation:

option (d) none of these

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