Question 6 0/1 pt 0 3 # 97 0 Details Given u x u = (2, 0, 3), find (zi - 20) x (u + 4vi). Question Help: )Video Question 7 0/1 pt 0 3 99 0 Details Let a = (6, -7, -5) and b = (1, 4, 4). (a - b) x (a+b = Question Help: Video Question 8 6 0/1 pt 0 3 99 0 Details Let zi = (-5,5,3) and u = (-3, 6, 1). Compute the following: u xu = 1 xu = u xu = zi x (70) = (1 + v ) xu = Find the Vector Orthogonal to Two Given Vectors Question 9 0/1 pt 0 3 99 0 Details Find two unit vectors orthogonal to both i = (1, 1, 2) and u = (0, 5,9). Give exact values (no decimals). Separate the vectors with a comma. unit vectors = Question Help: Video . Question 10 0/1 pt 0 3 # 99 0 Details Find a vector that is orthogonal to the plane containing the points , , and . Application: Determine the Areas and Volumes using the Cross Product Question 11 0/1 pt 3 2 99 0 Details Find the area of a triangle POR, where P = (0, 5, -4), Q = (4, -3, -5), and R = (4, -6,0) Question Help: Video . Question 12 0/1 pt 03 99 0 Details Find the area of a parallelogram formed by the vectors PQ and PR, where P = (-6, -1, 5), Q = (3, -2,0) and R = (2, 4, 0). Question 13 0/1 pt 0 3 99 0 Details Find the volume of the parallelepiped determined by the vectors a = (4,5, -1), b = (0, 4, 1), c= (2, 4, 1). Volume = cubic-units Question Help: Video Application: Torque