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Geometric progression
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Second last line, 10(10n-1)/9-n How is it equal to 10n+1 -9 When 10(10n-1) should be equal to 100n-10.
Answers (3)
Thread Starter
Chris TopherThis one sir ......
n here is to the power of 10. So, you have 10 x 10^n = 10^(n+1). That n+1 to power of 10 And then they have taken 9 in denominator outside
