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If ""^(n)C(5)=""(n)C(6), then find 13(Cn...

If `""^(n)C_(5)=""(n)C_(6)`, then find `13_(Cn)`.

Text Solution

Verified by Experts

The correct Answer is:
`""^(13)C_(n)=""^(13)C_(11)=""^(13)C_(2)=(13xx12)/(1xx2)=78`
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