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Two stock tables are A = 2 , -1 ; 0 , 5 and B = 3 , 4… | StemPy Lab
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Two stock tables are A = 2 , -1 ; 0 , 5 and B = 3 , 4 ; -2 , 1 . Find the matrix 2B - A.
Mathematics
Easy
High School (11–12)
Algebra › Matrices and Determinants
A-Level
IB
Created by
StemPy Lab
Two stock tables are
A
=
[
2
−
1
0
5
]
A = \begin{bmatrix} 2 & -1 \\ 0 & 5 \end{bmatrix}
A
=
[
2
0
−
1
5
]
and
B
=
[
3
4
−
2
1
]
B = \begin{bmatrix} 3 & 4 \\ -2 & 1 \end{bmatrix}
B
=
[
3
−
2
4
1
]
. Find the matrix
2
B
−
A
2B - A
2
B
−
A
.
[
4
9
−
4
3
]
\begin{bmatrix} 4 & 9 \\ -4 & 3 \end{bmatrix}
[
4
−
4
9
3
]
[
8
7
−
4
7
]
\begin{bmatrix} 8 & 7 \\ -4 & 7 \end{bmatrix}
[
8
−
4
7
7
]
[
4
9
−
4
−
3
]
\begin{bmatrix} 4 & 9 \\ -4 & -3 \end{bmatrix}
[
4
−
4
9
−
3
]
[
1
5
−
2
−
4
]
\begin{bmatrix} 1 & 5 \\ -2 & -4 \end{bmatrix}
[
1
−
2
5
−
4
]
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