Question

1) Determine as raízes:

A) √81 =

B) √100 =

C) ³√1 =

D) ³√-1 =

E) ⁴√61 =

F) √121 =

G) - √64 =

H) - ⁴√81 =

I) - ³√-27 =

J) ³√27 =

Answer 1

a)9
b)10
f)11
g)não existe

Answer 2

$A)~~ \sqrt{81} = \sqrt{3^4} =3^2=9 \\ \\ B)~~ \sqrt{100} = \sqrt{2^2.5^2} =2.5=10 \\ \\ C)~~ \sqrt[3]{1} =1 \\ \\ D)~~ \sqrt[3]{-1} =-1 \\ \\ E)~~ \sqrt[4]{61} =? \\ \\ F)~~ \sqrt{121} = \sqrt{11^2} =11 \\ \\ G)~~- \sqrt{64} =- \sqrt{2^6} =-2^3=-8 \\ \\ H)~~- \sqrt[4]{81} =- \sqrt[4]{3^4} =-3 \\ \\ I)~~- \sqrt[3]{-27} =- \sqrt[3]{-3^3} =-(-3)=3 \\ \\ J)~~ \sqrt[3]{27} = \sqrt[3]{3^3} =3$