1.

If the sum of odd terms and the sum of even terms in the expansion of (x+a)^n are p and q respectively then p^2+q^2=

Answer»

`((X+a)^(2N) - (x -a)^(2n))/(2)`
`(x + a)^(2n) - (x - a)^(2n)`
`((x + a)^(2n) + (x -a)^(2n))/(2)`
`(x + a)^(2n) + (x - a)^(2n)`

ANSWER :C


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