In the plane rectangular coordinate system, point P (3 + m, 2n) and point Q (2m-3, 2n + 1) are centrosymmetric with respect to the origin, then m, n =?
If two points are symmetrical about the origin, their abscissa and ordinate are opposite to each other
3 + M = - (2m-3) and 2n = - (2n + 1)
The result is: M = 0, n = - 1 / 4
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