Find The Sum Ofthe Series 1 + 22 + 333 + 4444 +...

Anonymous

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Find the sum ofthe series 1 + 22 + 333 + 4444 + 55555 + tothe nthterm. Thanks

 

Answer No.1

Anonymous

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Oh sorry... hmm interesting I don't know a way to represent itneatly and mathematically but here's the best I got right now; itmight not be very helpful hopefully someone will come in and cleanit up: 1(100) + (2(101 + 100)) +(3(102 + 101 + 100)) + . .. + (n(10n-1 + 10n-210^n-3 . . . 100)) of course, this cannot be complete because after 9 terms, thingsstart getting a little weird. there is also this formula that givesthe nth term up to 9 : Sn = n(10n 1)/9 have any ideas yourself?

Answer No.2

FabulousMary7

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If you keep on adding numbers that are increasing like that it willbe infinity

Answer No.3

DedicatedGenius0

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What is it to the nth term though?

Answer No.4

ProfessorPro

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What about = n(n+1) {10n+1 - 1} - 10(10n -1) - 2*100(10n-1-1) - ........n 2 9 9 9

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