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7 Cards in this Set
- Front
- Back
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Find dot product of U and V.
U= <4, 5> V= <-3,-7> |
-47
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Find dot product of U and V.
U= 7i V= -2i + 5j |
-14
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Use dot product to find IuI.
U= -4i |
4
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Use an algebraic method to finding the angle between the vectors. Use a calculator to approximate exact answers when appropriate.
U= (2 cos π/4)i + (2 sin π/4)j, V= (cos 3π/2) + (sin 3π/2)j |
135 degrees
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Use dot product to find the length of the vector U= <4, -3>
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5
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True or false: If the dot product of U and V = 0, then U and V are perpendicular.
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False
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Multiple Choice:
Let U= <1, 1> and V= <-1, 1>. Which of the following is the angle between U and V? A: 0° B :45° C: 60° D: 90° E: 135° |
D
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