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find the comman difference of following sequence state whether it is an is an ap an not 7,11 ,15,19,23..... |
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Answer» ong>Answer: common difference =4 and it is an ap Explanation: a1=7 a2=11 a3=15 common difference =a2-a1 =11-7 =4 common difference _ = a3-a2 =15-11 = 4 when common difference is same then it is an ap |
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