daca a=|radical 5-radical 3 |
b=|3radical5 - 4radical5
calculați 3a-b
[tex]a[/tex]
​ ajutorrrrrrrrr va roggg


Răspuns :

[tex]a = | \sqrt{5} - \sqrt{3} | = \sqrt{5} - \sqrt{3} [/tex]

[tex]b = |3 \sqrt{5 } - 4 \sqrt{5} | = | - \sqrt{5} | = \sqrt{5} [/tex]

[tex]3 \times a - b =3 \times \sqrt{5} - \sqrt{3} - \sqrt{5} = 2 \sqrt{5} - \sqrt{3} [/tex]