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Anonymous users2024-02-11There is a 19-year-old young man at the University of Göttingen in Germany who is very talented in mathematics, and he routinely does three math problems given to him by his tutor every day. One day he was given three math problems as usual, the first two of which he completed in more than two hours, and the third on a small piece of paper in which he was asked to draw a regular seventeen-sided shape with a compass and an ungraduated ruler. He was struggling, he had never encountered such a headache, he racked his brains but made no progress, and the mathematics he had learned did not seem to help him in the slightest.
However, the difficulties aroused his fighting spirit, and he tried all kinds of deductions beyond common sense while thinking. When the light of the window gradually shone into the room, the young man breathed a sigh of relief, he had finally finished the question. When he saw the mentor, the young man felt a little guilty and blamed himself, and he said to the mentor:
The three questions you gave me, I actually worked all night, and I failed your cultivation. The tutor took the young man's homework and looked at it, he was stunned on the spot, and he said to the young man in a trembling voice: Is this really what you did?
He asked the young man to take out a compass and a ruler to show him, and when the young man finished it, the tutor said to him excitedly: "You know that you have solved the mystery of mathematics for more than 2,000 years!" Archimedes didn't solve it, Newton didn't solve it, you actually spent one night unraveling it!!
What a genius you are!! The note was accidentally given to the young man by the tutor that day, and when the young man recalled this scene, he always said: If I had known that it was a historical mathematical problem of more than 2,000 years, I might never have the confidence to solve it.
This young man was Gauss, the prince of mathematics.
There are some things that we can often do better when we don't know how hard it is! The real difficulty is not the difficulty itself, but our fear of it.
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Anonymous users2024-02-10Goo (no clue problem, no excessive problem, even if you ask Einstein is confused...) sorry
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Anonymous users2024-02-09Area of the triangle = base x height 2
Therefore, as long as the base and height of the two triangles are the same, the area is equal, the triangle OAM area = triangle OMM = OBN = ONC It can be seen that these 4 small triangles, each of which is a triangle ABN 1 3 triangle ABN area is 9 2 * 9 2 = 81 4, then OAM = OMB = OBN = ONC = (81 4) 3 = 27 4AOCD = positive direction ABCD - 4 small triangle area = 9 * 9-4 * (27 4) = 54
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Anonymous users2024-02-08Do something you don't know what the result will be!
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Anonymous users2024-02-07What is the problem? Be clear.
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Anonymous users2024-02-06Do you have this ** that needs to be answered?
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Anonymous users2024-02-05a²-4a-4≥0
The solution for a -4a-4 = 0 can be found.
According to the root finding formula, there are:
a=（4±4√2）/2
Therefore, the two solutions are:
a1=2+2 2 a2=2-2 2 due to inequality is
So take the other two, that is, the answer you gave in the picture.
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Anonymous users2024-02-04What you think in your heart, how do you interpret it?
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Anonymous users2024-02-03Add friends, let's chat privately in the process!
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