Math, asked by bangtansonyeondan7, 11 months ago

please answer in detail

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Answered by Kushjaiswal

1

Answer:

(2^n ) - 1

Step-by-step explanation:

on binomial expansion

(1+1)^n = nC0+nC1+nC2+....+nCn=2^n

1+nC1+nC2+....+nCn=2^n

nC1+nC2+....+nCn=2^n - 1

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