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If first and (2n-1)^th terms of an AP, ...

If first and `(2n-1)^th` terms of an AP, GP. and HP. are equal and their nth terms are a, b, c respectively, then (a) a=b=c (b)a+c=b (c) a>b>c and `ac-b^2=0` (d) none of these

A

`a+c = 2b`

B

`a+c=b`

C

`ac-b^(2)=0`

D

none of these

Text Solution

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The correct Answer is:
C
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