Răspuns :

Răspuns:

Bunaa

Explicație pas cu pas:

lalallalalalallalalalalalalallalala

Vezi imaginea HotShrek

[tex]a = ( \sqrt{3} - 1) {}^{2}[/tex]

Aplicăm formula:

[tex](a + b) {}^{2} = {a}^{2} + 2ab + {b}^{2} [/tex]

[tex]a = { \sqrt{3} }^{2} + 2 \times \sqrt{3} \times 1 + {1}^{2} [/tex]

[tex]a = 3 + 2 \sqrt{3} + 1[/tex]

[tex]a = 4 + 2 \sqrt{3} [/tex]

Formula mediei geometrice:

[tex]mg = \sqrt{a \times b} [/tex]

[tex]mg = \sqrt{(4 + 2 \sqrt{3} ) \times(4 - 2 \sqrt{3} } [/tex]

Vom avea formula:

[tex]a {}^{2} - {b}^{2} = (a + b)(a - b)[/tex]

[tex]mg = \sqrt{ {4}^{2} - (2 \sqrt{3}) {}^{2} } [/tex]

[tex]mg = \sqrt{16 - 4 \times 3} [/tex]

[tex]mg = \sqrt{16 - 12} [/tex]

[tex]mg = \sqrt{4} [/tex]

[tex]mg = 2[/tex]