Consider the vectors u = ( 6 , 2 , 4 ) and v = ( 1 , 2 , 0 ) from Example 10. Without using Theorem 5.9, show that among all the scalar multiples c v of the vector v , the projection of u onto v is the closest to u − that is, show that d ( u , proj v u ) is a minimum.
Consider the vectors u = ( 6 , 2 , 4 ) and v = ( 1 , 2 , 0 ) from Example 10. Without using Theorem 5.9, show that among all the scalar multiples c v of the vector v , the projection of u onto v is the closest to u − that is, show that d ( u , proj v u ) is a minimum.
Consider the vectors
u
=
(
6
,
2
,
4
)
and
v
=
(
1
,
2
,
0
)
from Example 10. Without using Theorem 5.9, show that among all the scalar multiples
c
v
of the vector
v
, the projection of
u
onto
v
is the closest to
u
−
that is, show that
d
(
u
,
proj
v
u
)
is a minimum.
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.
InThe Northern Lights are bright flashes of colored light between 50 and 200 miles above Earth.
Suppose a flash occurs 150 miles above Earth. What is the measure of arc BD, the portion of Earth
from which the flash is visible? (Earth’s radius is approximately 4000 miles.)
e).
n!
(n - 1)!
Suppose you flip a fair two-sided coin four times and record the result.
a). List the sample space of this experiment. That is, list all possible outcomes that could
occur when flipping a fair two-sided coin four total times. Assume the two sides of the coin are
Heads (H) and Tails (T).
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