Math

School gives us a huge store of knowledge. But when you go out there all that you can apply working for example a simple sales-manager, is knowledge of AutoSum in EXCEL. And your unclaimed skills gather dust lying on the cerebral cortex. And certainly some of them already lying around somewhere in the vicinity of the pituitary gland, and you hardly ever get them from there because of the absolute uselessness.

But there were many interesting and developing cognitions. Take the math: open any handbook, and you will find many paradoxes and puzzles that sales-manager's brain is unlikely to be able to explain to you properly.

That is an interesting point for example: take a square of side a = b = 1 (intrigued?))). Then, according to the Pythagorean theorem, its squared hypotenuse с must be
c² = a² + b².
To find the hypotenuse you should take the square root of this number. But if sides of the square are equal to 1 then the square of the diagonal is 2, and hence a diagonal equal to the square root of 2. But we can not take the square root of 2! This is an infinite fraction! Can you imagine an infinite number?

It would not been so important, if my wild imagination didn’t imagine: you draw on paper a square with sides equal to 1 (mm, cm, m, inches - does not matter), take a ruler and measure the hypotenuse, seeing its end point. And it turns out that you can not write that number!! End point constantly "escapes" from you to infinity with every decimal place (maybe into the paper?). And this number never reaches 2!

But the math guys are not sales managers, and they took full responsibility from themselves for such "inconsistencies", calling these numbers "irrational" thus equating them to the magic of voodoo and infectiousness of the mummies of Egyptian pyramids...

That's just where the sales-manager can shine such knowledge?

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