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The value of (""^(21)C(1)-""^(10)C(1))+(...

The value of `(""^(21)C_(1)-""^(10)C_(1))+(""^(21)C_(2)-""^(10)C_(2))+(""^(21)C_(3)-""^(10)C_(3))+(""^(21)C_(4)-""^(10)C_(4))+....+(""^(21)C_(10)-""^(10)C_(10))` is

A

`2^(20)-2^(10)`

B

`2^(21)-2^(11)`

C

`2^(21)-2^(10)`

D

`2^(20)-2^(9)`

Text Solution

Verified by Experts

The correct Answer is:
A
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