\frac{4+\sqrt{2}}{2-\sqrt{2}}
(4+√2)/2-√2=2+1/2√2-√2=2-1/2√2.. ja bym to tak zrobiła..
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(4+√2)/2-√2=2+1/2√2-√2=2-1/2√2.. ja bym to tak zrobiła..