The best method for solving the problem of arithmetic progressions of exercise 5.1 of class 10th math, the easiest way for soling this question is Which of the following are APs? If they form an A.P. find the common difference d and write three more terms.(xi) a, a2, a3, a4 …
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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.(xi) a, a2, a3, a4 … Q.4(11)
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Here,
a2 – a1 = a2–a = a(a-1)
a3 – a2 = a3 – a2 = a2(a-1)
a4 – a3 = a4 – a3 = a3(a-1)
Since, an+1 – an or the common difference is not same every time.
Therefore, the given series doesn’t forms a A.P.