This Summation problem has been troubling me for days........Please help!

Sum to n terms the following series.........

(1/1) + (2/3) + (3/9) + (4/27) + ............................. to n terms .

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- Oct 22nd 2010, 07:53 PMArkaSummation of Arithmetico-Geometrical sequence........
This Summation problem has been troubling me for days........Please help!

Sum to n terms the following series.........

(1/1) + (2/3) + (3/9) + (4/27) + ............................. to n terms . - Oct 22nd 2010, 10:03 PMSoroban
Hello, Arka!

Quote:

.[1]

The geometric series has: first term , common ratio , and terms.

. . Its sum is: .

Then [1] becomes:

. .