If A = [4 7] and B = [3 1] , find: A+2B - Vidyadip

Question

If $A = [4 7]$ and $B = [3 1] ,$ find: $A+2B$

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Answer

$ A =\left[4 7\right]_{1 \times 2} B =\left[3 1\right]_{1 \times 2}$
$A+2 B=[4,7]+[6,2]$
$=\left[4+6 7+2\right]$
$=\left[10 9\right]_{1 \times 2}$

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