Решите уравнение
X²+y²-8x+12y+52=0 x²-8x+16+y²+12y+36=0 (x-4)²+(y+6)²=0 (x-4)²=0 ∧ (y+6)²=0 a)(x-4)²=0, x-4=0, x=4 b)(y+6)²=0, y+6=0,y=-6 /x,y/=/4, -6/ =========