Question

Va rog mult ajutatima! Am nevoie acum! URGENT​

Answer 1

Răspuns:

3.

$ma=\frac{\sqrt{11}-\sqrt{2}+\sqrt{11}\sqrt{2}}{2} =\frac{2\sqrt{11}}{2} =\sqrt{11}$

$mg=\sqrt{(\sqrt{11}+\sqrt{2})(\sqrt{11}-\sqrt{2}} =\sqrt{11-2} =\sqrt{9} =3$

4.

$\sqrt{2} =1,41$

$-3\sqrt{3} =-3*1,73=-5,19$

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: