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Question
Identify the following sequence is in G.P.?
4, 44, 444, 4444, .....
Sum
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Solution
4, 44, 444, 4444, ......
r = `("t"_2)/("t"_1) = 44/4` = 11
r = `("t"_3)/("t"_2) = 444/44 = 111/11`
`11 ≠ 111/11`
∴ It is not a G.P.
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Chapter 2: Numbers and Sequences - Exercise 2.7 [Page 72]
