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x=√6+2, y=√6-√2, z=?
x²+y²=z²
z²=x²+y²
z=pierwiastek(x²+y²)
z=pierwiastek[(√6+2)²+(√6-√2)²]
z=pierwiastek[6+4√6+4+6-2√12+2]
z=pierwiastek[18+4√6-2√12]
z=pierwiastek[18+4√6-4√3]
14=z^2
z=3,74 //w przybliżeniu
Lub jeśli to to jeden pierwiastek (√6+2)
(√6+2)^2+(√6-√2)^2=z^2
12=z^2
z=2√3