1.

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 __

Answer»

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


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