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| f Which of the following is the magnitude of the vector u, if u · u = 25 ? f |
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f Let u = < 2, 5 >, v = < 28, - 21 >. Which of the following is the angle between u, v approximately?
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| f Let A = (- 5, 4), B = (9, 4) and C = (7, 8). Find m∠ABC. f |
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f Which of the following is the dot product of the vectors u = 6i + 8j< and <v = 7i - 9j?
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| f Let u = < - 4, 5 >, v = < 15, 20 >. Which of the following is equal to Projvu? f |
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| f Let u = < 5, 8 > and v = < 3, 5 >. Which of the following is equal to projvu? f |
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f Which of the following is the work done by a 110 pound force acting in the direction of < 9, 12 > in moving an object 5 feet from (0, 0) to (5, 0) in foot-pounds?
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f Let u = (cos 56°) i + (sin 56°) j and v = (cos 26°) i + (sin 26°) j. Which of the following is the angle between the vectors u, v?
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| f Let u = < 12, 16 >, v = < 15, 20 >. Which of the following is correct? f |
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f Let u, v be two vectors such that u = <5, 5>, u · v = 25 and |v|2 = 25. Which of the following is correct?
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| f Let u = < cos 32°, - sin 32° > and v = < cos 8°, sin 8° >. Which of the following is the value of u · v? f |
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f Let u = < sin 3 α, cos 3 α >, v = < cos 4β, sin 4β >. Which of the following is the value of u · v?
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f Let u = < sin 84°, cos 84°>, v = < cos 24°, - sin 24°>. Which of the following is the angle between u and v?
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f Let u, v be two vectors. Which of the following is the value of |(3u + 5v)|2?
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| f Let u, v be two vectors. Which of the following is the value of (5u + 8v) · (5u - 8v)? f |
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| f Let u = <4, 2> and v = <2, 4>. Find the value of (2u + 4v) · (4u + 2v). f |
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f Let u, v be two vectors such that u = <6, 6>, u · v = 36 and |v|2 = 36. Which of the following is correct?
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| f Let u = <6, 5> and v = <5, 6>. Find the value of (5u + 6v) · (6u + 5v). f |
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| f Let u = < cos 35°, - sin 35° > and v = < cos 8°, sin 8° >. Which of the following is the value of u · v? f |
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f Let u = < sin 65°, cos 65°>, v = < cos 20°, - sin 20°>. Which of the following is the angle between u and v?
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| f Let u, v be two vectors. Which of the following is the value of (3u + 6v) · (3u - 6v)? f |
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f Which of the following is the dot product of the vectors u = <u1, u2> and v = <v1, v2>?
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f Which of the following is the dot product of the vectors u = 5i + 7j and v = 5i - 7j?
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| f Let u, v be two vectors. Which of the following is correct? f |
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| f Which of the following is the magnitude of the vector u, if u · u = 81 ? f |
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f Let u = < 3, 7 >, v = < 32, - 24 >. Which of the following is the angle between u, v approximately?
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| DD Let u = < 6, 4 >, v = < 8, -12 >. Which of the following is correct? DD |
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| DD Let A = (- 4, 3), B = (6, 3) and C = (4, 5). Find m∠ABC. DD |
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DD Which of the following is the work done by a 140 pound force acting in the direction of < 6, 8 > in moving an object 7 feet from (0, 0) to (7, 0) in foot-pounds?
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| DD Let u = < - 3, 5 >, v = < 15, 20 >. Which of the following is equal to Projvu? DD |
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| DD Let u = < 9, 10 > and v = < 1, 1 >. Which of the following is equal to projvu? DD |
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| DD Let u, v be two nonzero vectors. Which of the following is correct? DD |
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DD Let u = (cos 70°) i + (sin 70°) j and v = (cos 10°) i + (sin 10°) j. Which of the following is the angle between the vectors u, v?
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| DD Which of the following is correct for a vector u of a plane? DD |
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DD Let u = < sin 5 α, cos 5 α >, v = < cos 8β, sin 8β >. Which of the following is the value of u · v?
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DD Let u, v be two vectors. Which of the following is the value of |(5u + 7v)|2?
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| DD Let u, v be two vectors. Which of the following is correct? DD |
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| DD Let u, v be any two nonzero vectors. Which of the following is correct? DD |
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| DD Let u, v be any two nonzero vectors. Which of the following is correct? DD |
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| DD Let u = < 9, 12 >, v = < 18, 24 >. Which of the following is correct? DD |
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