JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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Analyzing +4 | -1

(10)^{9}+2(11)^{1}\left(10^{8}\right)+3(11)^{2}(10)^{7}+\ldots

+10(11)^{9}=k(10)^{9}

, then

k

is equal to:

View answer and explanation

Correct option: A

100

Option A (100) is correct because by manipulating the series and subtracting, we can find the value of k.

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