If begin bmatrix 5 - 4 -88-3lend bmatrix -3 X- begin bmatrix -4 - 7 5 -9Find X-

The correct option is B [ 3 amp; 1; 1 amp; 2 ] [ 5 amp;4; 8 amp; 3 ] 3X=[ 4 amp;7; 5 amp; 9 ] ⇒ 3X=[ 5 amp;4; 8 ...

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Subtraction of Matrices

If begin bmat...

Question

If $[\begin{matrix} 5 & 4 8 & - 3 \end{matrix}] - 3 X = [\begin{matrix} - 4 & 7 5 & - 9 \end{matrix}]$ .

Find X?

$[\begin{matrix} 3 & 1 1 & 2 \end{matrix}]$

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$[\begin{matrix} 3 & - 1 1 & 2 \end{matrix}]$

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$[\begin{matrix} 3 & - 1 - 1 & 2 \end{matrix}]$

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$[\begin{matrix} - 3 & - 1 1 & 2 \end{matrix}]$

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[\begin{matrix} 2 & 3 5 & 7 \end{matrix}] [\begin{matrix} 1 & - 3 - 2 & 4 \end{matrix}] = [\begin{matrix} - 4 & 6 - 9 & x \end{matrix}]

Compute the indicated products.
$(i) [\begin{matrix} a & b - b & a \end{matrix}] [\begin{matrix} a & - b b & a \end{matrix}]$

$(i i) ⎡ ⎢ ⎣ \begin{matrix} 123 \end{matrix} ⎤ ⎥ ⎦ [234]$

$(i i i) [\begin{matrix} 1 & - 2 2 & 3 \end{matrix}] [\begin{matrix} 1 & 2 & 3 2 & 3 & 1 \end{matrix}]$

$(i v) ⎡ ⎢ ⎣ \begin{matrix} 2 & 3 & 4 3 & 4 & 5 4 & 5 & 6 \end{matrix} ⎤ ⎥ ⎦ ⎡ ⎢ ⎣ \begin{matrix} 1 & - 3 & 5 0 & 2 & 4 3 & 0 & 5 \end{matrix} ⎤ ⎥ ⎦$

$(v) ⎡ ⎢ ⎣ \begin{matrix} 2 & 1 3 & 2 - 1 & 1 \end{matrix} ⎤ ⎥ ⎦ [\begin{matrix} 1 & 0 & 1 - 1 & 2 & 1 \end{matrix}]$

$(v i) [\begin{matrix} 3 & - 1 & 3 - 1 & 0 & 2 \end{matrix}] ⎡ ⎢ ⎣ \begin{matrix} 2 & - 3 1 & 0 3 & 1 \end{matrix} ⎤ ⎥ ⎦$

Find X if $2 X + 3 Y = [\begin{matrix} 2 & 3 4 & 0 \end{matrix}] a n d 3 X + 2 Y = [\begin{matrix} 7 & - 2 - 1 & 5 \end{matrix}]$

x

y

[\begin{matrix} 2 x + y 3 x - 2 y \end{matrix}] = [\begin{matrix} 54 \end{matrix}]

[\begin{matrix} x & 0 1 & y \end{matrix}] + [\begin{matrix} - 2 & 1 3 & 4 \end{matrix}] = [\begin{matrix} 3 & 5 6 & 3 \end{matrix}] - [\begin{matrix} 2 & 4 2 & 1 \end{matrix}]

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