Question

find the value of k which k,2k-1 and 2k+1 are ap

Answer 1

Answer:

Step-by-step explanation:

If a,b, c are in Ap

b-a = c-b-----(1)

According to the given problem

a=k, b=2k-1, c=2k+1

Using (1)

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

2k-1-k =2k+1-2k+1

k-1 = 2

k=2+1

k=3

Answer 2

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