Find the sum to infinity of the series 1/2 , 1/6, 1/18, ....
Find the sum to infinity of the series 1/2 , 1/6, 1/18, .....
2/3
1/3
3/4
1
Correct answer is C
a=12r=1612=16×21=13S∞=a1−rS∞=121−13=1232=12×32=34
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