Avem urmatorul radical de forma:
[tex] \sqrt{a+\sqrt{b}} \\ a = a \\ b = b \\ c = \sqrt{a^2-b}[/tex]
Atunci avem formula radicalilor compusi:
[tex]\sqrt{a+\sqrt{b}}=\sqrt{\frac{a+c}{2}}+\sqrt{\frac{a-c}{2}}[/tex]
Daca avem radicalul acesta:
[tex] \sqrt{a-\sqrt{b}} [/tex]
Formula radicalilor compusi este aceasta:
[tex]\sqrt{a-\sqrt{b}}=\sqrt{\frac{a+c}{2}}-\sqrt{\frac{a-c}{2}}[/tex]
