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OpenStudy (anonymous):
Use matrices and decide the value of P and Q so that the system has no solution and that the system has infinity solution x1+x2+3x3=-2 2x1+x2+Px3=3Q x1+2x2+5x3=-4
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OpenStudy (anonymous):
\[x _{1}+x _{2}+3x _{3}=-2\] \[2x _{1}+x _{2}+Px _{3}=3Q\] \[x _{1}+2x _{2}+5x _{3}=-4\]
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