[Archive!] Pure mathematics, physics, chemistry, etc.: brain-training problems not related to trade in any way - page 87
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Mathemat, I can't believe you don't know how to restore the square :)
Speaking of ninth grade. I haven't seen any 9th graders that smart. Maybe they're just rare.
Problems 6 and 7 mean no one has been able to solve them.
https://www.mql5.com/ru/forum/123519/page78
Блин, это ж задача для 9-го класса!
Exactly for the ninth?
It is formulated analytically, 6 unknowns, three equations of circles, two equations of lines plus the condition of equality of sides. But if the problem is for ninth grade, I won't write out the system :)
ну дак сколько вседаки углов у треугольника?
That's just crazy...!
:)
Задачи N6 и №7 значит никто решить так и не смог.
https://www.mql5.com/ru/forum/123519/page78
Well, seven... I think that's a no-go.
and sixth..... has not given birth to any reasonable version.
Варианта два -- или решение оригинальное, или нудное и огромное, с кучей доп. построений.
Original :) . Thanks for the problem, how easy it is...
Problems #6 and #7 mean no one has been able to solve them. https://www.
mql5.com/ru/forum/123519/page78
Точно для девятого?
Она формулируется аналитически, 6 неизвестных, три уравнения окружностей, два уравнения прямых плюс условие равенства сторон. Но если задачка для девятого класса, то выписывать систему я не буду :)
Well, TheXpert already knows the solution and says it's easy. And we're writing out systems here. I have even more unknowns, but they are connected rationally. Somehow we need to keep it simple.
Вероятно, нужно пользовать какое-то инвариантное свойство семейства прямоугольников, описанных вокруг заданного выпуклого четырехугольника (наших четырех известных точек). Похоже на то, что они все вписаны в одну окружность. Возможно, ошибаюсь.
Mischek, у тебя циркуль е, проверь, а? Тебе линейку подбросить? Или угольник нужон?
Блин, это ж задача для 9-го класса!
I'm on break, I can't now, I'm doing my homework with my son (1st grade), it's a separate song, no words.I'm on break, I can't now, I'm doing my homework (1st grade), it's a song, no words.
Didn't you try asking his teachers about Mathemat's problems? I used to make fun of physics and chemistry teachers like that :)