a)
\sqrt6*\sqrt{\frac{1}{6}}=\sqrt6*\frac{\sqrt1}{\sqrt6}=1
b)
\sqrt{0,4}*\sqrt{10}=\sqrt{0,4*10}=\sqrt4=2
c)
\sqrt{1\frac{1}{5}}*\sqrt{0,3}=\sqrt{\frac{6}{5}*\frac{3}{10}}=\sqrt{\frac{9}{25}}=\frac{3}{5}
d)
\sqrt[3]2*\sqrt[3]4=\sqrt[3]8=\sqrt[3]{2^3}=2
e)
\sqrt[3]{0,08}*\sqrt[3]{100}=\sqrt[3]{0,08*100}=\sqrt[3]8=2
f)
\sqrt[3]{\frac{2}{9}}*\sqrt[3]{1\frac{1}{3}}=\sqrt[3]{\frac{2}{9}*\frac{4}{3}}=\sqrt[3]{\frac{8}{27}}=\frac{2}{3}
g)
\frac{\sqrt{0,9}}{\sqrt{10}}=\sqrt{\frac{0,9}{10}}=\sqrt{0,09}=0,3
h)
\frac{\sqrt[3]{10000}}{\sqrt[3]{10}}=\sqrt[3]{\frac{10000}{10}}=\sqrt[3]{1000}=10
i)
\sqrt{3^2}=3
j)
\sqrt{7^4}=\sqrt{(7^2)^2}=7^2=49
k)
\sqrt{5^2*11^2}=\sqrt{(5*11)^2}=5*11=55
l)
\sqrt{3^2*2^4}=\sqrt{(3*2^2)^2}=3*4=12