Answers

2016-02-22T23:18:16+05:30
Given,it's an AP
so, 7.2+3d = 3
     3d = -4.2
     hence, d = -1.4
thus, a = 7.2 + (-1.4) = 5.8
         b = 5.8 + (-1.4) = 4.4
.............................................hope this helps..........................................
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