How many terms of the G.P. 1, 4, 16, ... must be taken to have their sum equal to 341?

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The above series is a G.P. with a = 1 and r = 4. Let n terms be required to give the sum of 341. By formula, Hence, the required number of terms of the G.P. are 5.

Mathematics

How many terms of the G.P. 1, 4, 16, … must be taken to have their sum equal to 341?

AP GP

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