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Aflati mg a nr. √7^3 si √7^5

Răspuns :

Mg= rad(rad(7^8))= rad7^4=7^2 = 49
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[tex]mg=\sqrt{a*b}[/tex]

[tex]mg=\sqrt{\sqrt{7^{3}}*\sqrt{7^{5}}}[/tex]

[tex]mg=\sqrt{\sqrt{7^{3}*7^{5}}}[/tex]

[tex]mg=\sqrt{\sqrt{7^{3+5}}}[/tex]

[tex]mg=\sqrt{\sqrt{7^8}}[/tex]

[tex]mg=\sqrt{\sqrt{(7^{4})^{2}}}[/tex]

[tex]mg=\sqrt{7^{4}}[/tex]

[tex]mg=\sqrt{(7^{2})^{2}}[/tex]

[tex]mg=7^{2}[/tex]

[tex]mg=49[/tex]