Obliczenia do 1) :
[tex] {x}^{2} = {3}^{2} + {( \sqrt{7}) }^{2} \\ {x}^{2} = 9 + 7 \\ {x}^{2} = 16 \\ x = 4[/tex]
Obliczenia do 2) :
[tex] {y}^{2} = {(3 \sqrt{3}) }^{2} + {( \sqrt{11}) }^{2} \\ {y}^{2} = 27 + 11 \\ {y}^{2} = 38 \\ y = \sqrt{38} [/tex]
