Question

let x-1,x-4, and x-7 are in ap then find the value of x

Answer 1

We know that a2 - a1 = a3 - a2

therefore, 2a2 = a1 + a3

=> 2(x - 4) = x - 1 + x - 7

=> 2x - 8 = 2x - 8

=> 0 answer.......

Answer 2

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