Question

a, b, c are in A.P. Then
(A) 2B=a+c
(B) ac=b
(C) 6-2aca+c
(D) None ​

Answer 1

D) none

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Answer 2

Answer:

a,b,c are in AP so

$b = \frac{a + c}{2} \\ 2b = a + b$

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