Math, asked by ayushichoubey6823, 1 year ago

the sum of first three terms of a gp is 13/12 and their product is -1. find the common ratio

Answers

Answered by Anonymous
6
let a, ar,ar^2,be 3,terms

= a + ar + ar^2 =13/12

(ar)^3 = -1
ar = -1

a= -1/r

-1/r -1 -r = 13/12
r^2 +r +25/12=0

find r from this
Similar questions