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In a geometric progression with common r...

In a geometric progression with common ratio q, the sum of the first 109 terms exceeds the sum of the first 100 terms by 12. If sum of the first nine terms of the progression is `lambda/(q^(100))` then find the value of `lambdadot` (1) 10 (2) 6 (3) 18 (4) 12

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