Given v = 4 , − 3 and w = 2 , − 2 , a. Find proj w v . b. Find vectors v 1 and v 2 such that v 1 , is parallel to w, v 2 is orthogonal to w, and v 1 + v 2 = v . c. Using the results from part (b) show that v 1 is parallel to w by finding a constant c such that v 1 = c w . d. Show that v 2 is orthogonal to w. e. Show that v 1 + v 2 = v .
Given v = 4 , − 3 and w = 2 , − 2 , a. Find proj w v . b. Find vectors v 1 and v 2 such that v 1 , is parallel to w, v 2 is orthogonal to w, and v 1 + v 2 = v . c. Using the results from part (b) show that v 1 is parallel to w by finding a constant c such that v 1 = c w . d. Show that v 2 is orthogonal to w. e. Show that v 1 + v 2 = v .
Solution Summary: The author calculates the vector projection v=4,-3andw =2,-2.
b. Find vectors
v
1
and
v
2
such that
v
1
, is parallel to w,
v
2
is orthogonal to w, and
v
1
+
v
2
=
v
.
c. Using the results from part (b) show that
v
1
is parallel to w by finding a constant c such that
v
1
=
c
w
.
d. Show that
v
2
is orthogonal to w.
e. Show that
v
1
+
v
2
=
v
.
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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College Algebra with Modeling & Visualization (5th Edition)
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