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The sum of first three terms of a G.P. i...

The sum of first three terms of a G.P. is `(39)/(10)` and their product is 1. Find the common ratio and the terms.

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Let a/r​,a,ar be the first terms of the G.P.
=`a/r​+a+ar=1039​`....(1)
`(a/r​)(a)(ar)=1`...(2)
From (2) we obtain a=1 (considering real roots only)
Substituting a=1 in equation (1), we obtain
...
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