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Rationalizati numitorul
a)10 supra 3radical5
b)2 supra radical7+radical5
c)10 supra 2radical3 -radical2
Astept daca vreti detalii


Răspuns :

a) 10 / 3√5 = 10√5 / 15 = 2√5 / 3
b) 2 / (√7  +√5) = 2(√7-√5) / 2 = √7-√5
c) 10 / (2√3-√2) = 10 (2√3+√2) / 10 = 2√3 +√2