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Let (1+x^(2))^(2) (1+x)^(n) = underset(k...

Let `(1+x^(2))^(2) (1+x)^(n) = underset(k = 0)overset(n+4)suma_(k)x^(k)`.. If `a_(1), a_(2)` and `a_(3)` aer in arithmetic progression, then the possible value/values of n is/are

A

5

B

4

C

3

D

2

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The correct Answer is:
B, C, D
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PATHFINDER-BINOMIAL THEOREM-QUESTION BANK
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