Direction: Read the following text and answer the following questions on the basis of the same:
Solar Panels have to be installed carefully so that the tilt of the roof, and the direction to the sun, produce the largest possible electrical power in the solar panels.
A surveyor uses his instrument to determine the coordinates of the four corners of a roof where solar panels are to be mounted. In the picture , suppose the points are labelled counter clockwise from the roof corner nearest to the camera in units of meters P1(6, 8, 4), P2(21, 8, 4), P3(21, 16, 10) and P4(6, 16, 10)
Q. What are the components to the two edge vectors defined by = PV of P2 – PV of P1 and = PV of P4 – PV of P1? (where PV stands for position vector)