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

Let ` (1 + x^(2))^(2) (1 + x)^(n) = a_(0) + a_(1) x + a_(2) x^(2) + …` if
` a_(1),a_(2) " and " a_(3)` are in A.P , the value of n is

A

2

B

3

C

5

D

7

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Verified by Experts

The correct Answer is:

A, B

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Let (1 + x^(2))^(2) (1 + x)^(n) = a(0) + a(1) x + a(2) x^(2) + … if ...
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