The position vector OP of point P (20, 10) is rotated anti-clockwise in X-Y plane by an angle q = 30° such that point P occupies position
Q. The position vector OP of point P (20, 10) is rotated anti-clockwise in X-Y plane by an angle q = 30° such that point P occupies position Q, as shown in the figure. The coordinates (x, y) of Q are
Ans: (12.32, 18.66)
Sol:
Let Co-ordinates of Q are (x’, y’) and rotation about x-y plane anti clockwise.