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If t0,t1, t2,...,tn are the terms in the...

If `t_0,t_1, t_2,...,t_n` are the terms in the expansion of `(x+a)^n` then prove that `(t_0-t_2+t_4-...)^2+(t_1-t_3+t_5-...)^2=(x^2+a^2)^n`.

A

`(x^2 + a^2)`

B

`(x^2 + a^2)^n`

C

`(x^2 + a^2)^(1//n)`

D

`(x^2 + a^2)^(-1//n) `

Text Solution

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The correct Answer is:
B
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