Maharshi M.

asked • 07/14/16

Prove that

prove that
b2+c2   ab        ac
ab        c2+a2   bc              = 4a2b2c2
ca        cb         a2+b2
 
3X3 Matrix

1 Expert Answer

By:

Kenneth S. answered • 07/14/16

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Maharshi M.

Thanks. I got it.
But how to do it by elimination?
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07/14/16

Kenneth S.

"Elimination" is not applicable in this case.
Elimination is a method (hand-crafting) to solve a systemof simultaneous equations.
But this problem is an IDENTITY--you need to do the Algebra to evaluate the left side expression & show that, when simplified, you get the result that is on the right side of the equation.
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07/14/16

Maharshi M.

Thanks a lot.Got it.
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07/15/16

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