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Nth Term of GP

Given the geo...

Question

Given the geometric progression $1, 4, 16, 64, . . . . .$
Find its common ratio.

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Solution

From given GP, we have $a_{1} = 1, a_{2} = 4$
So, common ratio, $r = \frac{a_{2}}{a_{1}} = \frac{4}{1} = 4$

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