Question

Ina Gp the first term is 1/3 and 7th term is 1/2187 what is the common ratio
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Answer 1

Step-by-step explanation:

a = 1/3 , ar^6 = 1/2187

r^6 = 3/2187

r^6 = (1/3)^6

r = 1/3

Answer 2

Answer:

Common ratio is 1/3..

Step-by-step explanation:

Given a=1/3 (first term)

$a7 = ar {}^{6} = = \frac{1}{2187}$

Substituting a=1/3 we get

$\frac{1}{3} r {}^{6} = \frac{1}{2187}$

$r {}^{6} = \frac{1}{729} = = > r = \frac{1}{3}$

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