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10. Calculați:
a) |√3 − √5 |+|√3+√5|-|3–2√5|;
c) |√3 + √² |-|√3+
5|-|1-√2|+|-5|;
b)2-√5 -√3+√5 + 1-√³|-|√5.
d) |√2-√3|+|2-√3|+|1-√₂|-|-1