Binomial TheoremMedium

Question

Let ∈ N. If (1 + x)n = a0 + a1x + a2x2 + .......... + anxn and an-3, an-2, an-1 are in AP, then -

Options

A.a1, a2, a3 are in AP
B.a1, a2, a3 are in HP
C.n = 7
D.n = 14

Solution

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