Question

The expressions x-6, 2x, and x^2 from the first three terms of a geometric progression. By calculating two different expressions for the common ratio, form and solve an equation in x to find possible values of the first term.

Answer 1

for a,b,c to be in GP, b^2 = a*c
we can use this to get 'x' from which the first term can be found. hope tht helps

Answer 2

no sorry could you do some of the steps please

Answer 3

did you know the above rule for terms in GP???

Answer 4

what gp? and no

Answer 5

geometric progression :P

Answer 6

oh I see haha

Answer 7

for a,b,c to be consecutive terms of a geometric progression,
(a/b)=(b/c) -->(1)
did you know this ???

Answer 8

yes

Answer 9

the same is rewritten by me as b^2 =a*c

Answer 10

how do you simplify this though