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If (1 +x+x^2)^n=sum(r=0)^(2n) ar x^r , t...

If `(1 +x+x^2)^n=sum_(r=0)^(2n) a_r x^r` , then prove that `a_r=a_(2n-r)`

A

0

B

`""^(n)C_(r)`

C

`a_(r)`

D

1

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VK JAISWAL-BIONMIAL THEOREM-Exercise-4 : Subjective Type Problems
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  12. In the polynomial function f(x)=(x-1)(x^(2)-2)(x^(3)-3)……..(x^(11)-11...

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