Question

K+9,2k-1,2k+7 are in Ap then find k?​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

(2k-1)-(k+9)=(2k+7)-(2k-1)

2k-1-k-9=2k+7-2k+1

k-10=8

k=18