Question

determine o valor de:​

Answer 1

Explicação passo-a-passo:

$a) ~~\sqrt{~100} =\sqrt{10^2} =10\\ \\ b)~~\sqrt[4]{256} =\sqrt[4]{2^4.2^4} =2.2=4\\ \\ c)~~\pm\sqrt{25} =\pm\sqrt{5^2} =\pm5\\ \\ d)~~-\sqrt{144} =-\sqrt{12^2} =-12\\ \\ e)~~-\sqrt[4]{81} =-\sqrt[4]{3^4} =-3\\ \\ f)~~\sqrt[3]{-8} =\sqrt[3]{-2^3} =-2\\ \\ g)~~\sqrt[5]{-1} =-1\\ \\ h)~~3\sqrt{16} =3.4=12\\ \\ i)~~\sqrt[9]{512} =\sqrt[9]{2^9} =2\\ \\ j)~~\sqrt[3]{-125} =\sqrt[3]{-5^3} =-5$