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If (1+x+x^(2))^(n) = a(0) + a(1)x+ a(2)x...

If `(1+x+x^(2))^(n) = a_(0) + a_(1)x+ a_(2)x^(2) + "……" a_(2n)x^(2n)`, find the value of `a_(0) + a_(3) + a_(6) + "……", n in N`.

A

1

B

2

C

3

D

None of these

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The correct Answer is:
B
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