We start with two positive numbers, a and b. Let's say a > b.

--> ab > bb
--> ab > b2
--> ab - a2 > b2 - a2
--> a(b - a) > (b - a)(b + a)
--> a > b + a

Weird science...

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How to make money:

1/4 USD = 25 cent

--> SQR (1/4 USD) = SQR (25 cent)

--> 1/2 USD = 5 cent

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