sulpcegu5e ppt 9_4
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Section 9.4
Vectors
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Scalar multiples have the following properties:
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OBJECTIVE 1
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Use the vectors illustrated to graph each of the following vectors:
(a) 2 b 2 (c) 2 v w v w v w u
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OBJECTIVE 2
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1 23,1 and 6,3 .P P
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OBJECTIVE 3
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If 6 2 6, 2 and 2 5 , find:
(a) (b)
v i j w i j
v w v w
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OBJECTIVE 4
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If 6 2 6, 2 and 2 5 , find:
(a) 5 (b) 2 3 (c)
v i j w i j
v v w v
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OBJECTIVE 5
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Find a unit vector in the same firection as 12 5 . v i j
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OBJECTIVE 6
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OBJECTIVE 7
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A box of supplies that weights 1000 pounds is suspended by two cables attached to the ceiling as shown. What are the tensions on the two cables?