注目の話題: フリーターについて; 昔のびっくりするくらい塩にまみれたシャケをご存知の方; 30代。自分の老いを受け入れられない。

Science,English,and math Ⅱ

No.39　17/05/02 11:38
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【The fact that there is an irrational number】

《Even if we can recognize the rational number,we find impossible to acknowledge an irrational number》

I don't feel like expressing the distributive law and calculation of multiplication of minus numbers no longer. I'm not interested in it at all. If you are please research it for yourself.

By the way as to the numbers which we use everyday life,as long as there are rational numbers,it looks enough,but the people in the ancient were conscious that it's insufficient. It's in relation to the Pythagorean theorem. It's relation of each of three side,x,y,and z in a right-angle triangle.

The theorems doesn't remain as geometric significance but has a tremendous impact on the concept of numbers. What is the Pythagorean theorem?

There is an isosceles triangle 二等辺三角形 which is right angle. Then two sides which aren't oblique sides 斜辺 and each length is 1. Pythagorean theorem says addition of each second power of the two sides is equal to …