Zad.1
[tex]\sqrt[3]{\frac{40}{1250} } *\sqrt[3]{\frac{1920}{27} } =\sqrt[3]{\frac{40}{1250}*\frac{1920}{27} } =\sqrt[3]{\frac{4}{125}*\frac{640}{9} } =\sqrt[3]{\frac{4}{25}*\frac{128}{9} } =\sqrt[3]{\frac{512}{225} } =\frac{8}{\sqrt[3]{225} } =\frac{8}{\sqrt[3]{15^{2} } }=\frac{8}{\sqrt[3]{15^{2} } }*\frac{\sqrt[3]{15} }{\sqrt[3]{15} }=\frac{8\sqrt[3]{15} }{\sqrt[3]{15^{3} } }=\frac{8\sqrt[3]{15} }{15}[/tex]
Odp A.
Zad.2
[tex]V=P_{p} *H\\\\P_{p} =\frac{a^{2}\sqrt{3} }{4} \\P_{p} =\frac{3^{2}\sqrt{3} }{4} =\frac{9\sqrt{3} }{4} \\\\H=4\sqrt{2} \\\\V=\frac{9\sqrt{3} }{4} *4\sqrt{2}=9\sqrt{3} *\sqrt{2}=9\sqrt{6}[/tex]