Question

Решите пожалуйста полностью

Answer 1

( 89 )

$\sqrt{19,8^2}=19,8\\\\\sqrt{(-1,26)^2}=-1,26\\\\\frac{1}{5}\sqrt{65^2}=\frac{1}{5}*65=\frac{65}{5}= 13\\\\-1,2\sqrt{(-7)^2}=-1,2*(-7)=8,4\\\\\sqrt{5^4}=5^2=25\\\\\sqrt{-19^4}=-19^2= 361$

( 90 )

$\sqrt{4*49}=\sqrt{2^2*7^2}=2*7=14\\\\\sqrt{0,01*64}=\sqrt{0,1^2*8^2}=0,1*8=0,8\\\\\sqrt{0,04*0,81*225}=\sqrt{0,2^2*0,9^2*15}= 0,2*0,9*15=0,18*15= 2,7\\\\\sqrt{5\frac{1}{16}*\frac{9}{25}}=\sqrt{\frac{81}{16}*\frac{9}{25}}=\sqrt{\frac{9^2}{4^2}*\frac{3^2}{5^2}}=\frac{9}{4}*\frac{3}{5}=\frac{27}{20}=1\frac{7}{20}=1,35\\\\\sqrt{2^1^0*7^2}=2^5*7= 32*7=224\\\\\sqrt{(-6)^6*0,2^4*(-2)^2}=-6^3*0,2^2*(-2)=-216*0,04*(-2)=\\=-8,64*(-2)=17,28$

( 91 )

$\sqrt{24} *\sqrt{6}=\sqrt{24*6}=\sqrt{144}=12\\\\ \sqrt{810} *\sqrt{640}=\sqrt{81*10}*\sqrt{64*10}=9\sqrt{10}*8\sqrt{10}=9*8\sqrt{10*10}=\\=72\sqrt{100}=72*10=720\\\\\frac{\sqrt{180} }{\sqrt{5}}=\sqrt{180:5}=\sqrt{36}=6\\\\\frac{\sqrt{20} }{\sqrt{0,05}}=\sqrt{20:0,05}= \sqrt{400}=20$

( 92 )

$\sqrt{6*54}=\sqrt{324}=18\\\\\sqrt{11*44}=\sqrt{484}=22 \\\\\sqrt{4,9*19,6} =\sqrt{96,04} =9,8\\\\\sqrt{2560*3,6}= \sqrt{9216}= 96$