Trong không gian vector R cho hai hệ vector u-u, -(m-2,2,5);:u,-(2,1,3);u, - (3,1,3)}, V={v₁ = (m-1,2,1); v = (m. 2,1);, =(-1,7.4)). a. Chúng tỏ UI, V là hai cơ sở của R. b. Cho t = (101,2,3), tim tọa độ của x theo cơ sở V.

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?