document.write( "Question 1133483: Let A=[1. 2
\n" ); document.write( " 3. a] and B=[1. 1
\n" ); document.write( " b 3]
\n" ); document.write( "Under what condition AB=BA?
\n" ); document.write( "a=b=1
\n" ); document.write( "a=1.5 and b=5
\n" ); document.write( "a=5. and b=1.5
\n" ); document.write( "None \n" ); document.write( "

Algebra.Com's Answer #750789 by greenestamps(13200) $\"\"$ $\"About$

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