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Francisccornel
a fost răspuns

va rog ajutati-ma.
Fie : a) (√4 -√3) (√4+√3) (√9-√8)
b) (√7-√6) (√7+√6) (√9+√8)
Calculati: Ma, Mg, Mh.

Răspuns :

CarMina03
(√4 -√3) (√4+√3) (√9-√8)=(2-√3)(2+√3)=(4+2√3-2√3-3)(3-2√2)=3-2√2
(√7-√6) (√7+√6) (√9+√8)=(7+√42-√42-6)(3+2√2)=3+2√2
Ma=(3-2√2+3+2√2)/2=6/2=3
Mg=√(3-2√2)(3+2√2)=√3²-(2√2)²=√9-8=1
Mh=2/(1/3-2√2+1/3+2√2)=2/(3+2√2+3-2√2)/(3-2√2)(3-2√2)=2/6/9-1=2/6=1/3







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