Răspunsuri

2014-06-16T22:20:10+03:00
A= 2/ 3+√7    rationalizam

a= (6-2√7)/ (9-7)=

a= (6-2√7)/2

b=3+√2 - √3 intregi 1/2=

b=3+√2 -√7/2   aducem la acelasi numitor

b=(6+2√2-√7)/2

mg=√ab

mg=√( 6-2√7)/2 * (6+2√2-√7)/2

mg=√ (36+12√2-6√7-12√7-4√14 +14)/4

mg=√ (50+12√2-18√7-4√14)/4

mg= √(50+12√2-18√7-4√14)/2