Question

Хелп а и б
....................

Answer 1

Ответ:

Пошаговое объяснение:

$sqrt{3frac{1}{16} }-5*sqrt{1,44}= sqrt{frac{49}{16} }-sqrt{25}*sqrt{1,44}=frac{7}{4}-sqrt{25 * 1,44}=frac{7}{4}-sqrt{36} =frac{7}{4}-6=frac{7-24}{4}=-frac{17}{4}=-4,25$

$sqrt{72}:sqrt{2}=sqrt{72 : 2}=sqrt{36}=6$

$sqrt{3frac{1}{3} }*sqrt{7,5}=sqrt{frac{10}{3} }*sqrt{frac{75}{10} }=sqrt{frac{10}{3}*frac{75}{10}}=sqrt{25}=5$

Answer 2

а)

$......=sqrt{frac{49}{16} } -5sqrt{frac{144}{100} } =frac{7}{4} -5*frac{12}{10} =1,75-6=-4,25$

б)

$........=sqrt{frac{10}{3} } *sqrt{frac{75}{10} } =sqrt{frac{10*75}{3*10} } =sqrt{25} =5$