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31/3 . 91/9 . 271/27 . 811/ 81…..upto infinity = (a)√27 (b)3√27 © 4√27 (d)none of these

31/3 . 91/9 . 271/27 . 811/ 81…..upto infinity =

(a)√27                                                   (b)3√27

© 4√27                                                  (d)none of these

Grade:11

2 Answers

saket shrivastava
36 Points
9 years ago

the ans is (d)none of these

reson ::: the geneal term of series is << 10 + (1/3)n >> as n -> infinity, (1/3)n -> 0

as the series doesnot have product of 10 in denominator, the product of series shuld have multiple of 10 in ans

hence it is (d)

Ranjita yadav
35 Points
9 years ago

But ans. is (c)..

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