Math, asked by gayu777, 11 months ago

(1)+(1+1+) + (1+1+1+) + .....+(1+1+1+.....n-1times =......

Answers

Answered by Anonymous

4

Answer:

Wrong formula the formula is n+1

Answered by shaileshagrawal200

9

Answer:

n(n+1)/2

Step-by-step explanation:

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