Questions
Question 1
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Compute \((1,0,0)\cdot((0,1,0)\times(0,0,1))\).
Question 2
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Find the volume of the parallelepiped with edges \((2,0,0),(0,3,0),(0,0,4)\).
Question 3
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Compute \([\mathbf a,\mathbf b,\mathbf c]\) for \(\mathbf a=(1,2,3)\), \(\mathbf b=(0,1,0)\), \(\mathbf c=(2,0,1)\).
Question 4
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Find the volume determined by \((1,1,0),(1,0,1),(0,1,1)\).
Question 5
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Use a scalar triple product to test whether \((1,0,0),(0,1,0),(1,1,0)\) are coplanar.
Question 6
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Compute \((2,1,0)\cdot((1,0,3)\times(0,2,1))\).
Question 7
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Find the oriented volume sign for \(\mathbf i,\mathbf j,\mathbf k\).
Question 8
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Find \(k\) if \((1,2,3),(2,1,0),(1,0,k)\) are coplanar.
Question 9
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Find the volume of the tetrahedron with edge vectors \((1,0,0),(0,2,0),(0,0,3)\) from one vertex.
Question 10
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Compute the determinant form of the scalar triple product for rows \((1,2,0),(3,1,1),(0,2,4)\).
Question 11
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Show that swapping two vectors changes the sign for \((\mathbf i,\mathbf j,\mathbf k)\).
Question 12
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Find the volume spanned by \((2,0,1),(1,3,0),(0,1,4)\).
Question 13
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Test whether \((1,2,3),(2,4,6),(0,1,1)\) are linearly independent.
Question 14
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Find the scalar triple product \(\mathbf a\cdot(\mathbf b\times\mathbf c)\) for \(\mathbf a=(0,2,1)\), \(\mathbf b=(1,-1,0)\), \(\mathbf c=(3,0,2)\).
Question 15
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Find the area-times-height interpretation for triple product value \(-18\).
Question 16
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For \(\mathbf a=(1,1,1)\), \(\mathbf b=(1,0,2)\), \(\mathbf c=(0,1,t)\), find \(t\) for volume \(3\).
Question 17
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Find the oriented volume of the parallelepiped with edges \((1,2,3),(4,5,6),(7,8,9)\), and explain what the result says about the three edges.
Question 18
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A box has edge vectors \((2,0,0),(1,3,0),(0,1,4)\). Find its volume.
Question 19
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For \(\mathbf a=(a_1,a_2,a_3)\) and \(\mathbf b=(b_1,b_2,b_3)\), show by component calculation that \(\mathbf a\cdot(\mathbf b\times\mathbf a)=0\).
Question 20
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Find \(x\) if the parallelepiped volume from \((x,0,0),(0,2,0),(0,0,5)\) is \(30\).