EXAMPLE 5 Find a matrix X, if X + 4...
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EXAMPLE 5 Find a matrix X, if X + 4 67 53 67 -3 717 5 -8 |

11th - 12th Class
Maths
Solution
60
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solution Let ( A=left[begin{array}{rr}4 & 6 -3 & 7end{array}right] ) and ( B=left[begin{array}{rr}3 & -6 5 & -8end{array}right] ) Then, the given matrix equation is ( X+A=B ). [ begin{array}{rr} therefore quad X+A=B Rightarrow X & =B+(-A) & =left[begin{array}{rr} 3 & -6 5 & -8 end{array}right]+left[begin{array}{rr} -4 & -6 3 & -7 end{array}right] & =left[begin{array}{cc} 3+(-4) & -6+(-6) 5+3 & -8+(-7) end{array}right]=left[begin{array}{rr} -1 8 & -0 -12 & end{array}right] end{array} ]
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