Related Post: 3 2 X 0 4 3 X 2 4x 0 3 2x 2 4x 0 2 3 X 0 Y 4 3x 3 )( X 2 4 )= 0 X 3 2x 2 4x 0 3 X 2 4x 4 0 3x 3 X 2 4x 0 3 4cos 2 X 0 3 2x )( X 4 )= 0