Question

(-18) m² n², Якщо m=-1⅓ : n = 1¼ ​

Answer 1

Если  m =  $-1\frac{1}{3}$ , а  n =  $1\frac{1}{4}$ , то

$\displaystyle\\-18m^2n^2=-18*(-1\frac{1}{3})^2*(1\frac{1}{4})^2=-18*(-\frac{4}{3})^2*( \frac{5}{4})^2=\\\\=-18*(-\frac{4^2}{3^2})*\frac{5^2}{4^2}= -18*\frac{16}{9} *\frac{25}{16}=-18*\frac{25}{9}=-2*25=-50$