Question

Find k so that 2k+1, 2k-1, 3k+4are in A.P.​

Answer 1

Answer:

IT'S A2 - A1 = A3- A2

THEREFORE,

(2K-1) - (2K+1) = (3K+4) - (2K-1)

2K -1 -2K-1 = 3K +4 -2K +1

-2 = K +5

-2 -5 = K

k = -7.

HOPE IT HELPS YOU :)

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