Question

If a-6, a, a+5 is a geometric sequence, then the common ratio of the sequence is ....?

Answer 1

take a proportion and solve a

Answer 2

\(\large \frac{a}{a-6} = \frac{a+5}{a}\)

Answer 3

or another easy way wud be to assume r is the common ratio and setup equations :-

(a-6)r = a -------------(1)
(a-6)r^2 = a+5---------(2)

Answer 4

a=-30

Answer 5

take (2)/(1) and give it a try, which ever way u find it easy..

Answer 6

yes a = -30

Answer 7

r=5/6?

Answer 8

Correct !

Answer 9

oic

Answer 10

thx

Answer 11

gw !