1.

If n is an even integer, then: C_(0)^(2)-C_(1)^(2)+C_(2)^(2)-C_(3)^(2)+ . . .+(-1)^(n)C_(n)^(2) is:

Answer»

`""^(2N)C_(n)`
`(-1)^(n)""^(2n)C_(n)`
`(-1)^(n)""^(2n)C_(n-1)`
NONE of these

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