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Question

If  a+bxabxb+cxbcxc+dxcdx(x ≠  0), then a, b, c, d are in:


  1. H.P.

  2. A.G.P

  3. A.P.

  4. G.P.


Solution

The correct option is D

G.P.


USING COMPONENDO AND DIVIDENDO RULE, we have  abxbcxcdx

⇒ ac = b2, bd = c2

So, a, b, c, d are in G.P.

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