Under the translation of origin to (1,2) the point (7, 5) undergoes to (7−1,5−2)≡(6,3) Under the translation through 2 units along the negative direction of the new x -axis, the point (6,3) undergoes to (6−2,3)≡(4,3) Under the rotation throw an angle
π
4
about the origin of new system in the clockwise direction, the final position of point (7,5) =(4cos