What is 2A?
A= [4 9 13 5]
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Answer:
Multiply each entry by 2!
Step-by-step explanation:
Multiplying a matrix by a constant means to multiply each entry by that constant.
According to that, 2A would be the result of each entry being multiplied by 2.
That is equal to [tex]$ 2A = \begin{pmatrix}2(4) & 2(9) \\2(13) & 2(5) \\\end{pmatrix}[/tex]
[tex]$ \implies 2A = \begin{pmatrix}8 & 18 \\26 & 10 \\\end{pmatrix}[/tex]
Hence, the answer.