zadanie 5.klasa 7.Na jutro.Daje naj..... Question from @juliabartnicka2002

juliabartnicka2002 @juliabartnicka2002

March 2022 2 4 Report

zadanie 5.klasa 7.Na jutro.Daje naj.

Odpowiedź:

a) $\sqrt{3 * 5 * 15} = \sqrt{15*15} = \sqrt{15^{2} } = 15$

b) $\sqrt{\frac{4}{5}* \frac{3}{5} * 12} = \sqrt{\frac{12}{25} * 12} = \sqrt{\frac{12^{2} }{5^{2}} } } = \frac{12}{5} } = 2\frac{2}{5} = 2,4$

c) $\sqrt[3]{1\frac{1}{5}* 2\frac{1}{2}* 1\frac{1}{8} } = \sqrt[3]{\frac{6}{5}*\frac{5}{2}*\frac{9}{8} } = \sqrt[3]{\frac{6}{2} * \frac{9}{8} } = \sqrt[3]{\frac{54}{16} } = \sqrt[3]{\frac{2 * 27}{2*8} } = \sqrt[3]{\frac{27}{8} } =\frac{3}{2} = 1\frac{1}{2} =$