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Math Forum » Discussions » Math Topics » discretemath

Topic: induction question
Replies: 9   Last Post: Feb 27, 2007 11:04 PM

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Earth

Posts: 8
From: CA, USA
Registered: 2/25/07
Re: induction question
Posted: Feb 27, 2007 2:44 AM
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1+2+3+...+n =n(n+1)/2
conclusion
(n-1)n/2+n = n(n+1)/2
a)what would be the last step in a similar inductive proof that
n(1/1! + 1/2! +...+(-1)^n/n!)?
what is the conclusion on this? how do work on it to get answer?

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