- #1
ar6
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Homework Statement
http://img87.imageshack.us/img87/469/17317851uu7.jpg [Broken]
Homework Equations
The Attempt at a Solution
First I have to show that P(1) is true
|a1| ≤ |a1| This is true
Assume above is true for all n.
Show that
|∑i=1n+1 ai| ≤ n+1∑i=1 |ai|
|a1 + a2 + a3…+ an + an+1| ≤ |a1| + |a2| + |a3| +…+ |an| + |an+1|
|∑i=1n ai + an+1| ≤ n+1∑i=1 |ai| + |an+1|
assuming I'm on the right track. How can i proceed. This problem is so abstract its driving me crazy. Sorry for formatting.
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