Question

а)√81*0,36. б)√75/√3. в)50/(2√10)2

Answer 1

$1)sqrt{81*0,36}=sqrt{9^{2}*0,6^{2}  }=9*0,6=5,4\\2)frac{sqrt{75} }{sqrt{3} }=sqrt{frac{25*3}{3} } =sqrt{25}=5\\3)frac{50}{(2sqrt{10})^{2}} =frac{50}{4*10}=frac{5}{4}=1,25$