Let A and B be two 2 xx 2 matrix with re...

Let A and B be two `2 xx 2` matrix with real entries, If AB=0 and such that tr(A)=tr(B)=0then

A and B are comutative w.r.t. operations of multiplication

A and B are not cummulative w.r.t operation of multiplication

A and B are both null matrices,0

BA=0

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The correct Answer is:

A, D

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RESONANCE ENGLISH-MATRICES & DETERMINANT-PART-III

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the determinant |{:(a,,b,,aalpha+b),(b,,c,,balpha+c),(aalpha+b,,balpha...
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