Question

Determine o valor de :
a) √100 f) 3√16
b) -√144 g) raiz nona de 512
c)- raiz quarta de 81 h)∛-125
d)∛-8
e)raiz quinta de -1

Answer 1

$a)~~ \sqrt{100} = \sqrt{2^2.5^2} =2.5=10 \\ \\ b)~~~- \sqrt{144} =- \sqrt{2^4.3^2} =-2^2.3=-4.3=-12 \\ \\ c)~~~- \sqrt{81} =- \sqrt{3^4} =-3^2=-9 \\ \\ d)~~ \sqrt[~3]{-8} = \sqrt[3]{-2^3} =-2 \\ \\ e)~~ \sqrt[5]{-1} =-1 \\ \\ f)~~~3 \sqrt{16} =3 \sqrt{2^4} =3(2^2)=3(4)=12 \\ \\ g)~~ \sqrt[~9]{512} = \sqrt[9]{2^9} =2 \\ \\ h)~~ \sqrt[~3]{-125} = \sqrt[3]{-5^3} =-5$

Answer 2

Explicação passo-a-passo:

$a) \sqrt{100} = 10 \\ b) - \sqrt{144} = - 12 \\ c) - \sqrt[4]{81} = - 3 \\ d) \sqrt[3]{ - 8} = - 2 \\ e) \sqrt[5]{ - 1} = - 1 \\ f)3 \sqrt{16} = 12 \\g) \sqrt[9]{512} = 2 \\ h) \sqrt[3]{ - 125} = - 5$

• Espero ter ajudado.