Ответ:
Xm = (Xa + Xb)/2
Xa = 2*Xm - Xb = 2*(-3) - 4 = -10
Ym = (Ya + Yb)/2
Ya = 2*Ym - Yb = 2*2 - 6 = -2
A(-10; -2)
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Ответ:
Xm = (Xa + Xb)/2
Xa = 2*Xm - Xb = 2*(-3) - 4 = -10
Ym = (Ya + Yb)/2
Ya = 2*Ym - Yb = 2*2 - 6 = -2
A(-10; -2)