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In anAP10,71m. find 12th Jeroen

Answer»

Given AP,10, 7, 4..............

First term a = 10, common difference d = 7 - 10 = - 3

nth term of an APan = a + (n - 1)d

Therefore,a12 = a + 11d = 10 + 11*-3 = 10 - 33 = - 23


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