... and b are orthogonal, (perpendicular), or one of a and b are zero. 26 1 2 1 2 2468 10 1 2 Figure 1. 11: Plots of f(x) = p(x)/q(x). 1. 6 HintsHint 1. 1area = constant ìdiameter 2 .Hint 1. 2 A ... vertices at (1, 1, 0), (3, 2, 1) , (2, 4, 1) and (1, 2, 5)?Hint, SolutionExercise 2. 8What is the equation of the plane that passes through the points (1, 2, 3), (2, 3, 1) and (3, 1, 2) ? What is ... ka 1 a 2 a3b 1 b 2 b3= ia 2 a3b 2 b3− ja 1 a3b 1 b3+ ka 1 a 2 b 1 b 2 = (a 2 b3− a3b 2 )i − (a 1 b3− a3b 1 )j...