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13 Nov 2019
4. Given the vectors A = 3x +6y-22 and B = x + 5y-22 , find a unit vector perpendicular to both A and B. (Hint: Use the cross product.) 5. The vertices of a triangle are given by the points P(3,1,1). Q(4,6,-1), and R(2.3,3). Find the three interior angles of the triangle. (Hint: assign vectors to each side of the triangle and use the dot product).
4. Given the vectors A = 3x +6y-22 and B = x + 5y-22 , find a unit vector perpendicular to both A and B. (Hint: Use the cross product.) 5. The vertices of a triangle are given by the points P(3,1,1). Q(4,6,-1), and R(2.3,3). Find the three interior angles of the triangle. (Hint: assign vectors to each side of the triangle and use the dot product).
Lelia LubowitzLv2
27 Aug 2019