2-17 -1 -8 -107 ut 1 0 A = 1 -2 -5 ...
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2-17 -1 -8 -107 ut 1 0 A = 1 -2 -5 1-3 4 19 22 15)

Railway Exams
Maths
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( left.left[begin{array}{cc}2 & -1 1 & 0 -3 & 4end{array}right] begin{array}{cccc}-1 & -8 & -10 1 & -2 & -5 9 & 22 & 15end{array}right]_{3 times 3} ) ( (3 times{2) times(m times n)=(3(x)) ) ( m=2 ) ( n=3 ) ( A=(2 times 3) ) mabin ( =left[begin{array}{lll}x_{1} & y_{1} & 3_{1} x_{2} & y_{2} & 3_{2}end{array}right] ) ( left[begin{array}{cc}2 & -1 1 & 0 -3 & 4end{array}right] eqleft[begin{array}{ccc}x_{1} & y_{1} & 3 x_{2} & y_{2} & 3end{array}right]=left[begin{array}{ccc}-1 & -8 & -10 1 & -2 & -5 9 & 22 & 15end{array}right] ) ( left[begin{array}{ccc}2 x_{1}-x_{2} & 2 y_{1}-y_{2} & 2 x_{1}-3_{2} x_{1} & y_{1} & 3_{1} -3 x_{1}+4 x_{2} & -3 y_{1}+4 y_{2} & -3 z_{1}+43end{array}right]=left[begin{array}{ccc}-1 & -8 & -10 1 & -2 & -5 9 & 22 & 15end{array}right] ) By equating ( left|x_{1}=1right| quadleft|y_{1}=-2right| quadleft|z_{1}=-5right| ) ( 2[1]-x_{2}=-1 quad 2 y_{1}-y_{2}=-8 ) ( 23,-3,=-k ) ( sqrt{x}_{2}=3 quad-4-y ) ( 151-3 x=-1 ) ( A=left[begin{array}{rrr}1 & -2 & -5 3 & 4 & 0end{array}right]left[begin{array}{ll}y_{2}=4 & -10-3 3 & 1end{array}right] )
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