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The number N=""^(20)C(7)-""^(20)C(8)+""^...

The number `N=""^(20)C_(7)-""^(20)C_(8)+""^(20)C_(9)-""^(20)C_(10)+….. -""^(20)C_(20)` is not divisible by :

A

3

B

4

C

7

D

19

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
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