Question

 For what value of k will k + 9, 2 k ‒ 1 and 2k + 7 are the consecutive terms of an A.P.?​

Answer 1

Answer:

hlo

your answer is here !

Step-by-step explanation:

If three terms x, y and z are in A.P. then, 2 y = x + z

Since k + 9, 2 k ‒ 1 and 2 k + 7 are in A.P.

∴ 2(2k − 1) = (k + 9) + (2k + 7)

⟹ 4k – 2 = 3k + 16

⟹ k = 18

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