\(a,=\sqrt{0,25}\cdot\sqrt{0,36}=0,5\cdot0,6=0,3\\ b,=\sqrt{2^4}\cdot\sqrt{\left(-5\right)^2}=2^2\cdot5=20\\ c,=\sqrt{1,44}\cdot\sqrt{100}=1,2\cdot10=12\\ d,=\sqrt{3^4}\cdot\sqrt{5^2}=3^2\cdot5=45\)
a. \(\sqrt{0,25.0,36}=\sqrt{0,25}.\sqrt{0,36}=0,5.0,6=0,3\)
b. \(\sqrt{2^4.\left(-5\right)^2}=\sqrt{2^4}.\sqrt{\left(-5\right)^2}=\sqrt{\left[\left(2\right)^2\right]^2}.\sqrt{5^2}=2^2.5=4.5=20\)
c. \(\sqrt{1,44.100}=\sqrt{1,2^2.10^2}=\sqrt{1,2^2}.\sqrt{10^2}=1,2.10=12\)
d. \(\sqrt{3^4.5^2}=\sqrt{3^4}.\sqrt{5^2}=\sqrt{\left[\left(3\right)^2\right]^2}.\sqrt{5^2}=3^2.5=9.5=45\)
