- #1
Levis2
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Homework Statement
> a[1], a[2], a[3], .. , a[n] are arbitrary real numbers, prove that;
abs(sum(a, i = 1 .. n)) <= sum(abs(a), i = 1 .. n)
Homework Equations
The Attempt at a Solution
I have uploaded my attempt as a pdf file, since I'm not too familiar with the practice of writing it with correct notation on this great site :) i apologize. I am a 17-year old HS student, so i apologize if my attempt is way off or seems a bit thick .. This analysis is all new to me :)