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in a g.p series 2n number is present.S1 is the sum of numbers occupying even position and S2 is sum of odd numbers.find common ratio.

rik , 6 Years ago
Grade
anser 1 Answers
Arun

Last Activity: 6 Years ago

Dear student
 
Let G.P. is
a, ar, ar^2, ar^3, …....
Now
S1 = ar (r^n  – 1) / (r – 1)
and
S2 = a (r^n  – 1) / (r – 1)
hence
s1 / s2 = r

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