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For the following A.P.s, write the first term and the common difference. (i) 3, 1, – 1, – 3 … Q.3(1)

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The question of ncert class 10th of math of arithmetic progressions of exercise 5.1 What is the best way to solve this question For the following A.P.s, write the first term and the common difference. (i) 3, 1, – 1, – 3 …

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  1. 3, 1, – 1, – 3 …

    First term, a = 3

    Common difference, d = Second term – First term

    ⇒  1 – 3 = -2

    ⇒  d = -2

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