Suppose thatx1,x2,x3, ... ,xnare real numbers. Prove (using mathematical induction) that

lx1 +x2 + ... +xnl<lx1l + lx2l + ... + lxnl

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- February 10th 2009, 10:24 AMbearej50Mathematical Induction
Suppose that

*x*1,*x*2,*x*3, ... ,*xn*are real numbers. Prove (using mathematical induction) that

l*x*1 +*x*2 + ... +*xn*l__<__l*x*1l + l*x*2l + ... + l*xn*l - February 10th 2009, 05:41 PMThePerfectHacker
- February 16th 2009, 11:12 AMbearej50
http://www.mathhelpforum.com/math-he...728e1577-1.gif

I know this to be true. I can use this theorem in my proof. I just dont know how to write a proof for this using mathematical induction. - February 16th 2009, 11:26 AMThePerfectHacker
- February 17th 2009, 12:30 PMbearej50
thank you again