True or False? In Exercises 73 and 74, determine whether the each statement is true or false. If a statement is true, give a reason or cite an appropriate statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text. (a) The length or norm of a vector is ‖ v ‖ = | v 1 + v 2 + v 3 + ⋯ + v n | . (b) The dot product of two vectors u and v is another vector represented by u ⋅ v = ( u 1 v 1 , u 2 v 2 , u 3 v 3 , … , u n v n ) .
True or False? In Exercises 73 and 74, determine whether the each statement is true or false. If a statement is true, give a reason or cite an appropriate statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text. (a) The length or norm of a vector is ‖ v ‖ = | v 1 + v 2 + v 3 + ⋯ + v n | . (b) The dot product of two vectors u and v is another vector represented by u ⋅ v = ( u 1 v 1 , u 2 v 2 , u 3 v 3 , … , u n v n ) .
Solution Summary: The author analyzes whether the statement is true or false.
True or False?In Exercises 73 and 74, determine whether the each statement is true or false. If a statement is true, give a reason or cite an appropriate statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text.
(a) The length or norm of a vector is
‖
v
‖
=
|
v
1
+
v
2
+
v
3
+
⋯
+
v
n
|
.
(b) The dot product of two vectors
u
and
v
is another vector represented by
u
⋅
v
=
(
u
1
v
1
,
u
2
v
2
,
u
3
v
3
,
…
,
u
n
v
n
)
.
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.
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