Răspuns:
3.
[tex]ma=\frac{\sqrt{11}-\sqrt{2}+\sqrt{11}\sqrt{2}}{2} =\frac{2\sqrt{11}}{2} =\sqrt{11}[/tex]
[tex]mg=\sqrt{(\sqrt{11}+\sqrt{2})(\sqrt{11}-\sqrt{2}} =\sqrt{11-2} =\sqrt{9} =3[/tex]
4.
[tex]\sqrt{2} =1,41[/tex]
[tex]-3\sqrt{3} =-3*1,73=-5,19[/tex]
3; √2; 1; -5, -3√3; -8
5. a) lx-√2l=√32
x-√2=4√2
x=5√2
b) 2(x-1)+√98=√2(5-√2)
2x-2+7√2=5√2-2
2x=5√2-2+2-7√2
2x=-2√2
x=-√2
Explicație pas cu pas:
