Math, asked by skapsar3139, 1 year ago

nC₁ + nC₂ + nC₃ + ......=
a) 2ⁿ₋1
b) 2ⁿ
c) 2ⁿ₊ 1
d) none of these

Answers

Answered by prachistar2000

3

nC1 + nC2 + nC3 + ........ =
${2}^{n} - 1$

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