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+1 vote
19.6k views
in Mathematics by (150k points)

Sum of infinite number of terms in GP is 20 and sum of their square is 100. The common ratio of GP is
(a) 5 

(b) 3/5 

(c) 8/5 

(d) 1/5.

1 Answer

+1 vote
by (87.4k points)
selected by
 
Best answer

(b) : Let terms of G.P are a, ar, ar2,....

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