Problem 1E: In Exercises 1–8, find the length and direction (when defined) of u × v and v × u.
1. u = 2i − 2j −... Problem 2E Problem 3E Problem 4E: In Exercises 1–8, find the length and direction (when defined) of u × v and v × u.
4. u = i + j − k,... Problem 5E: In Exercises 1–8, find the length and direction (when defined) of u × v and v × u.
5. u = 2i, v =... Problem 6E: In Exercises 1–8, find the length and direction (when defined) of u × v and v × u.
6. u = i × j, v =... Problem 7E: In Exercises 1–8, find the length and direction (when defined) of u × v and v × u.
7. u = −8i − 2j −... Problem 8E: In Exercises 1–8, find the length and direction (when defined) of u × v and v × u.
8. u = , v = i +... Problem 9E: In Exercises 9–14, sketch the coordinate axes and then include the vectors u, v, and u × v as... Problem 10E: In Exercises 9–14, sketch the coordinate axes and then include the vectors u, v, and u × v as... Problem 11E: In Exercises 9–14, sketch the coordinate axes and then include the vectors u, v, and u × v as... Problem 12E: In Exercises 9–14, sketch the coordinate axes and then include the vectors u, v, and u × v as... Problem 13E: In Exercises 9–14, sketch the coordinate axes and then include the vectors u, v, and u × v as... Problem 14E: In Exercises 9–14, sketch the coordinate axes and then include the vectors u, v, and u × v as... Problem 15E: In Exercises 15−18,
Find the area of the triangle determined by the points P, Q, and R.
Find a unit... Problem 16E: In Exercises 15−18,
Find the area of the triangle determined by the points P, Q, and R.
Find a unit... Problem 17E Problem 18E: In Exercises 15−18,
Find the area of the triangle determined by the points P, Q, and R.
Find a unit... Problem 19E: In Exercises 19–22, verify that (u × v) · w = (v × w) · u = (w × u) · v and find the volume of the... Problem 20E: In Exercises 19–22, verify that (u × v) · w = (v × w) · u = (w × u) · v and find the volume of the... Problem 21E: In Exercises 19–22, verify that (u × v) · w = (v × w) · u = (w × u) · v and find the volume of the... Problem 22E: In Exercises 19–22, verify that (u × v) · w = (v × w) · u = (w × u) · v and find the volume of the... Problem 23E Problem 24E Problem 25E: In Exercises 25 and 26, find the magnitude of the torque exerted by F on the bolt at P if in. and... Problem 26E: In Exercises 25 and 26, find the magnitude of the torque exerted by F on the bolt at P if in. and... Problem 27E: Which of the following are always true, and which are not always true? Give reasons for your... Problem 28E: Which of the following are always true, and which are not always true? Give reasons for your... Problem 29E: Given nonzero vectors u, v, and w, use dot product and cross product notation, as appropriate, to... Problem 30E Problem 31E Problem 32E Problem 33E Problem 34E Problem 35E: Find the areas of the parallelograms whose vertices are given in Exercises 35–40.
35. A(1, 0), B(0,... Problem 36E: Find the areas of the parallelograms whose vertices are given in Exercises 35–40.
36. A(0, 0), B(7,... Problem 37E: Find the areas of the parallelograms whose vertices are given in Exercises 35–40.
37. A(−1, 2), B(2,... Problem 38E: Find the areas of the parallelograms whose vertices are given in Exercises 35–40.
38. A(−6, 0), B(1,... Problem 39E: Find the areas of the parallelograms whose vertices are given in Exercises 35–40.
39. A(0, 0, 0),... Problem 40E: Find the areas of the parallelograms whose vertices are given in Exercises 35–40.
40. A(1, 0, −1),... Problem 41E: Find the areas of the triangles whose vertices are given in Exercises 41–47.
41. A(0, 0), B(−2, 3),... Problem 42E: Find the areas of the triangles whose vertices are given in Exercises 41–47.
42. A(−1, −1), B(3, 3),... Problem 43E: Find the areas of the triangles whose vertices are given in Exercises 41–47.
43. A(−5, 3), B(1, −2),... Problem 44E: Find the areas of the triangles whose vertices are given in Exercises 41–47.
44. A(−6, 0), B(10,... Problem 45E: Find the areas of the triangles whose vertices are given in Exercises 41–47.
45. A(1, 0, 0), B(0, 2,... Problem 46E: Find the areas of the triangles whose vertices are given in Exercises 41–47.
46. A(0, 0, 0), B(−1,... Problem 47E: Find the areas of the triangles whose vertices are given in Exercises 41–47.
47. A(1, −1, 1), B(0,... Problem 48E: Find the volume of a parallelepiped with one of its eight vertices at A(0, 0, 0) and three adjacent... Problem 49E: Triangle area Find a 2 × 2 determinant formula for the area of the triangle in the xy-plane with... Problem 50E: Triangle area Find a concise 3 × 3 determinant formula that gives the area of a triangle in the... Problem 51E: Using the methods of Section 6.1, where volume is computed by integrating cross-sectional area, it... Problem 52E: Using the methods of Section 6.1, where volume is computed by integrating cross-sectional area, it... Problem 53E: Using the methods of Section 6.1, where volume is computed by integrating cross-sectional area, it... Problem 54E: Using the methods of Section 6.1, where volume is computed by integrating cross-sectional area, it... Problem 55E: In Exercises 55–57, determine whether the given points are coplanar.
55. A(1, 1, 1), B(−1, 0, 4),... Problem 56E: In Exercises 55–57, determine whether the given points are coplanar.
56. A(0, 0, 4), B(6, 2, 0),... Problem 57E format_list_bulleted