Consistency of A x = b In Exercises 57-62, determine whether b is in the column space of A . If it is, write b as a linear combination of the column vectors of A . A = [ 1 3 0 − 1 1 0 2 0 1 ] , b = [ 1 2 − 3 ]
Consistency of A x = b In Exercises 57-62, determine whether b is in the column space of A . If it is, write b as a linear combination of the column vectors of A . A = [ 1 3 0 − 1 1 0 2 0 1 ] , b = [ 1 2 − 3 ]
Solution Summary: The author explains that the non-homogeneous system Ax=b is consistent if b is in the column space of
Consistency of
A
x
=
b
In Exercises 57-62, determine whether
b
is in the column space of
A
. If it is, write
b
as a linear combination of the column vectors of
A
.
A
=
[
1
3
0
−
1
1
0
2
0
1
]
,
b
=
[
1
2
−
3
]
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
Using vector algebra, identify all of the following vectors that are equivalent to (u + v) X w.
u xw+vX W
w xu + w XV
VX W u x W
-w xu - W X V
u x W-VX W
Determine whether u is in the column space of A. If it is, write u as a linear combination of the column vectors of A.
A =
O
5 4
U=
U=
u=
-17
-25
u=
-171
-25
17
25
-17
-25
is in the column space of A and
is in the column space of A and
is not in the column space of A
-
O None of these choices.
-17
-25
-17
-25
5
-5 [3] +
] = -5 [5] +
+2
+2
5
[1]
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