The origin of the coordinate axes is shifted to (-1,3) and the axes is rotated through an angle of 90 degrees in anticlockwise direction. If (a, b) is the new coordinates of (2,3) in the new coordinate system, then find the value of 2a sq. + 3b sq.
The origin of the co-ordinate axes is shifted to (-1,3) and the axes is rotated through an angle of 90∘ in anti-clockwise direction. If (a,b) is the new coordinates of (2,3) in the new coordinate system, then find the value of 2a2+3b2
The origin of the coordinate axes is shifted to (3,4) and the axes are rotated through an angle of 30∘ in the clockwise direction. Find the new coordinates of (7,-2)