Math Is Fun Forum

m.l.maija

Member

Registered: 2009-02-23

Posts: 5

Cauchy–Schwarz inequality

I guess I do not catch something.
Given: |(x/y)|² = (x/x)(y/y)
Prove: x and y are linearly dependent.
How do I do that?

Last edited by m.l.maija (2009-02-23 05:21:47)

JaneFairfax

Member

Registered: 2007-02-23

Posts: 6,868

Re: Cauchy–Schwarz inequality

m.l.maija

Member

Registered: 2009-02-23

Posts: 5

Re: Cauchy–Schwarz inequality

I am sorry, I guess I wrote it not correctly:
I meant (./.) as inner product.
Looks like I should write:
Given:|(x,y)|² = (x,x)(y,y)
Prove: x and y linearly dependent