document.write( "Question 56646This question is from textbook Linear Algebra with Applications
\n" ); document.write( ": For each of the following choices of A and b, determine if b is in the column space of A and state whether the system Ax=b is consistent.\r
\n" ); document.write( "\n" ); document.write( "A=[1 2] b=[4]
\n" ); document.write( " [2 4] [8]\r
\n" ); document.write( "\n" ); document.write( "also\r
\n" ); document.write( "\n" ); document.write( "A=[1 1 2] b=[1]
\n" ); document.write( " [1 1 2] [2]
\n" ); document.write( " [1 1 2] [3]
\n" ); document.write( "

Algebra.Com's Answer #38464 by venugopalramana(3286)\"\" \"About 
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For each of the following choices of A and b, determine if b is in the column space of A and state whether the system Ax=b is consistent.
\n" ); document.write( "A=[1 2] b=[4]
\n" ); document.write( "[2 4] [8]
\n" ); document.write( "CHECK THE RATIOS OF ELEMENTS IN THE 2 ROWS UNDER RESPECTIVE COLUMNS ARE EQUAL OR NOT...WE HAVE
\n" ); document.write( "1/2,2/4,4/8....ALL ARE EQUAL TO 1/2 .SO THE SYSTEM AX=B IS CONSISTENT\r
\n" ); document.write( "\n" ); document.write( "also
\n" ); document.write( "A=[1 1 2] b=[1]
\n" ); document.write( "[1 1 2] [2]
\n" ); document.write( "[1 1 2] [3]
\n" ); document.write( "WE HAVE
\n" ); document.write( "1/1,1/1,2/2,1/2....THEY ARE NOT ALL EQUAL.
\n" ); document.write( "1/1,1/2,2/2,1/3....THEY ARE NOT ALL EQUAL.
\n" ); document.write( "HENCE THE SYSTEM AX=B IS INCONSISTENT
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