Math, asked by Tanmay3193, 8 months ago

20. nC1 + nC2 + nC3 + nC4 + .....+
+ ... + nCn equals
(a) 2n-1
(b) 21
(c) 2n +1

Answers

Answered by vjsharma715

0

Answer:

2^n is the answer

Step-by-step explanation:

options are wrong

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