Question

Найти значение: а)(5√3)^2/6 = б)(7√2)^2/14= в)(3√19)^2/38= г)9/(4√3)^2= д)16/3,2*2= е)(1 5/6+3/5)=

Answer 1

$a)\frac{(5\sqrt3)^2}{6}= \frac{75}{6}= 12,5\\b) \frac{(7\sqrt2)^2}{4}= \frac{98}{4}= 24,5\\c) \frac{(3\sqrt{19})^2}{38}= \frac{3249}{38}= 85,5\\d) \frac{9}{(4\sqrt{3})^2} = \frac{9}{48} =0,1875\\e) \frac{16}{3,2*2}=16:6,4 =2,5\\f)1 \frac{5}{6}+ \frac{3}{5}= \frac{11}{6}+ \frac{3}{5}= \frac{11*5+3*6}{30}= \frac{55+18}{30} = \frac{73}{30}=2 \frac{13}{30}$