Q. 3 I4.1( 7 Votes )

Which of the following are GP? If they are in GP. Write three more terms?

0.4, 0.04, 0.004, ……

Answer :

Here first term is (a) = 0.4

r1 =


r2 =


Common ratios are equal so the given series is in GP.


a4 = a r3 = 0.4×(0.1)3 = 0.0004


a5 = a r4 = 0.4×(0.1)4 = 0.00004


a6 = a r5 = 0.4×(0.1)5 = 0.000004


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