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Thread: Making these two quantities equal?

  1. November 20th 2011, 10:09 PM #1
    tubetess123
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    Making these two quantities equal?

    Hello,

    How would I prove that (Bx\cdot x)(Ax) = (Ax \cdot x)(Bx) if Ax = \lambda Bx?

    I need to prove it without using the fact that I already know that Ax = \lambda Bx, because this is the second half of an iff proof, so I can't assume I have that knowledge.

    Thanks!
    Last edited by tubetess123; November 20th 2011 at 10:27 PM.
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  2. November 22nd 2011, 08:59 AM #2
    girdav
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    Re: Making these two quantities equal?

    Can you exactly write have you are supposed to do in the iff proof?
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