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the value of overset(n)underset(r=2)(Si...

the value of `overset(n)underset(r=2)(Simga)(-2)^(r ) |{:( .^(n-2)C_(r-2),,.^(n-2)C_(r-1),,.^(n-2)C_(r)),(-3,,1 ,,1),(2,,-1,,0):}| (n gt 2)`

A

`2n-1+(-1)^(n)`

B

`2n+1+(-1)^(n)`

C

`2n-3+(-1)^(n)`

D

None of these

Text Solution

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The correct Answer is:
A
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