calliemoon
calliemoon calliemoon
  • 30-03-2020
  • Mathematics
contestada

Let matrix A=[8 -2]
[4 7]
Let matrix B=2A.
find b22.

Let matrix A8 2 4 7 Let matrix B2A find b22 class=

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sqdancefan
sqdancefan sqdancefan
  • 30-03-2020

Answer:

  14

Step-by-step explanation:

b22 = 2×a22 = 2×7 = 14

__

Multiplication of a matrix by a scalar is the same as multiplying every element of that matrix by that scalar.

  [tex]B=2A=2\left[\begin{array}{cc}8&-2\\4&7\end{array}\right]=\left[\begin{array}{cc}16&-4\\8&14\end{array}\right]\\\\b_{22}=14[/tex]

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