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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: matrices.....
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[Post New]25 May 2008 18:21:30 IST
    Subject: matrices.....
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shub (38)

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A and B are 2 n rowed square matrices such that AB=0 and B is non singular.


show that A = 0.....
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[Post New]25 May 2008 21:39:15 IST
    Subject: Re:matrices.....
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allamraju (3422)

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B is non-singularB-1 exists.So,multiplying both sides by B-1,we get,

(AB)B-1=0(B-1)A.I=0A=0.Hence proved.
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