order of matrix A=[1,2,3,4] is
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Answer:
order of matrix A=[1,2,3,4] is 1×4.
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Step-by-step explanation:
A is matrix of order 3×4.
Means A has 3 rows and 4 columns .
A=
⎣
⎢
⎢
⎡
a
11
a
21
a
31
a
12
a
22
a
32
a
13
a
23
a
33
a
14
a
24
a
34
⎦
⎥
⎥
⎤
⇒ Now, Row 1 i.e. R
1
=[
a
11
a
12
a
13
a
14
], it has 4 coulumns.
∴ Order of R
1
is 1×4
⇒ Now, column 2 i.e. C
2
=
⎣
⎢
⎢
⎡
a
12
a
22
a
32
⎦
⎥
⎥
⎤
, it has 1 column and 3 rows .
∴ Order of C
2
is 3×1
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