Question
मान लीजिए $A=\left[\begin{array}{ll} 2 & 4 \\ 3 & 2 \end{array}\right], $$B=\left[\begin{array}{cc} 1 & 3 \\ -2 & 5 \end{array}\right], $$C=\left[\begin{array}{cc} -2 & 5 \\ 3 & 4 \end{array}\right] $, तो A - B ज्ञात कीजिए।

Answer

A - B = $\left[\begin{array}{ll} 2 & 4 \\ 3 & 2 \end{array}\right]$ - $\left[\begin{array}{cc} 1 & 3 \\ -2 & 5 \end{array}\right]$ = $\left[\begin{array}{cc} 2-1 & 4-3 \\ 3-(-2) & 2-5 \end{array}\right]$ = $\left[\begin{array}{cc} 1 & 1 \\ 5 & -3 \end{array}\right]$

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