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## #1 2012-12-18 15:19:02

jacks
Member
Registered: 2012-11-21
Posts: 132

### Geometric progression

If

are in Geometric Progression. Then prove that

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## #2 2012-12-18 19:50:56

bob bundy
Registered: 2010-06-20
Posts: 8,321

### Re: Geometric progression

hi jacks

put b = ar and c = ar^2 and substitute in these expressions.

Bob

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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## #3 2012-12-19 05:22:46

jacks
Member
Registered: 2012-11-21
Posts: 132

### Re: Geometric progression

Thanks bobbundy I will try it

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## #4 2012-12-19 21:33:27

cool_jessica
Member
Registered: 2012-06-26
Posts: 15

### Re: Geometric progression

put b= an, c= an^2

1/a^3+1/an+1/an^2... similarly...

Finally it would come as 1/a=3/4

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## #5 2012-12-22 11:27:09

scientia
Member
Registered: 2009-11-13
Posts: 224

### Re: Geometric progression

Something is wrong here. 1, 1, 1 are in geometric progression (r = 1) but

Last edited by scientia (2012-12-22 11:36:29)

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