in a geometric progression a4 * a5=1/64

a1*a2*a3*a4....*a13=?

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- October 19th 2013, 05:57 AMparmisGeometric progression
in a geometric progression a4 * a5=1/64

a1*a2*a3*a4....*a13=? - October 19th 2013, 07:05 AMparmisRe: Geometric progression
and these question's answer is 40?

In a Geometric progression :

a5 is 24 more than a3. => a5-a3=24

if terms are Integer and positive. a3+a5=? - October 19th 2013, 09:02 AMSlipEternalRe: Geometric progression
- October 19th 2013, 09:12 AMSlipEternalRe: Geometric progression
- October 20th 2013, 06:50 AMSorobanRe: Geometric progression
Hello, parmis!

There are at least 4 possible solutions . . .

Quote:

We are given: .

I found four cases: .

Take the first case: .

We find that: .

Then: .

. . . . . . . .

. . . . . . . .

. . . . .

. . . . . . .

You can work out the other three solutions.