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4. Calculaţi:
a) (√10 √90: √50)²-(√90-√40)²-√18
b)(1/√3)²•(√27)-¹: (-√3) + √3;
c) √2•[√2 · (√2 + 1/√2) ¹]'¹ - (2√/3)¹
d)1/√3+2•[(√3)¹-3•1/√3]³​


Răspuns :

Răspuns:

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