Question

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

Answer 1

let three terms is equal to a a/r and ar
given. a+ar+a/r=39/10 ...... let it be eq. 1
given product is 1
a.ar.a/r=1
a
$a {3} = 1$
therefore a=1
subsituting in eq.1 we get eq. given in the photo above u can find the terms by subsitituting the value in eq