CBSE Class 10 Answered
Pls Answer
Asked by | 28 Aug, 2009, 01:43: PM
Expert Answer
1. 
3,6,9,12............. is not A.P
Since the difference between two suceesive numbers is not constant.
i.e 6 - 3 
9 - 6
2. 4,9/2,5,11/2,6............ = 4, 4.5, 5, 5.5,6......... is an A.P.
Since the difference between two succesive number is constant.
i.e 4.5 - 4 = 5-4.5 = 0.5
Hence the answer.
Answered by | 28 Aug, 2009, 02:29: PM
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