Разложите на множители: x^3-xy^2-6y^2+6x^2 a^2+2ab+b^2-25
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ЖЕДАЛЙАШОВАПРЫГНРМ ВППЦКП
Объяснение:
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1. Проведем прямую через точки В и С.
2. Точку А соединим с точкой С..
3.Вокруг отрезка [AC] нарисуем прямоугольник 1 × 2, в котором [AC] является диагональю и делит данный прямоугольник на 2 равных прямоугольныз треугольника.
4. Имеем прямоугольный треугольник с катетами длины 1 и 2 и гипотенузой [AC].
5. По формуле Пифагора вычисляем длину гипотенузы: 1²+2²=[AC]² =>
[AC]²=5 => [AC]=√5
ответ:Расстояние от точки А до прямой ВС равно √5≈2.2 клетки
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