In exercise 5.1 of class 10th of chapter arithmetic progressions how i solve the question in simple way. I think it is very important question for class 10th Which of the following are APs? If they form an A.P. find the common difference d and write three more terms.(ix) 1, 3, 9, 27 …
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Which of the following are APs? If they form an A.P. find the common difference d and write three more terms.(ix) 1, 3, 9, 27 … Q.4(9)
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Here,
a2 – a1 = 3-1 = 2
a3 – a2 = 9-3 = 6
a4 – a3 = 27-9 = 18
Since, an+1 – an or the common difference is not same every time.
Therefore, and the given series doesn’t form a A.P.