Q1 of 69 Page 78

Choose the correct alternative answer for each of the following sub questions.

First four terms of an A.P. are ....., whose first term is – 2 and common difference is – 2.

Given first term t1 = – 2


Common difference d = – 2


By using formula tn + 1 = tn + d


t2 = t1 + d = – 2 + ( – 2) = – 2 – 2 = – 4


t3 = t2 + d = – 4 + ( – 2) = – 4 – 2 = – 6


t4 = t3 + d = – 6 + ( – 2) = – 6 – 2 = – 8


Hence, the A.P. is – 2, – 4, – 6, – 8


∴ correct answer is (C)

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