Answers

2015-10-24T13:50:51+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Given three terms are in A.P so,2(2k-1)=k+2k+1;4k-2=3k+1;4k-3k=1+2;k=3 Therefore k=3
1 3 1
it is 4k -2 = 2k+1.... you wrote 4k - 4..
click on edit link below answer to modify it.. please.
Ty
2015-10-24T17:28:44+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
If three terms are in AP, then  sum of the first and third are twice the middle.

     k + 2 k +1  = 2 (2k -1)
     k = 3

so  3,  5,  7 are in AP
1 5 1