Odpowiedź:
[tex]-9:4,5=-9:\frac{9}{2} =-9*\frac{2}{9} =-2[/tex]
[tex]-11:5,5=-11:\frac{11}{2} =-11*\frac{2}{11} =-2[/tex]
[tex]-1\frac{2}{3} :(-0,5)=-\frac{5}{3}:(-\frac{1}{2})= -\frac{5}{3}*(-2)=\frac{10}{3} =3\frac{1}{3}[/tex]
[tex]-2,4:(-2\frac{2}{3} )=-2\frac{2}{5} :(-\frac{8}{3} )=-\frac{12}{5} *(-\frac{3}{8} )=\frac{9}{10} =0,9[/tex]
[tex]-1,2*1\frac{1}{4} =-1\frac{1}{5} *\frac{5}{4}=-\frac{6}{5} *\frac{5}{4} =-\frac{6}{4} =-1\frac{1}{2} =-0,5[/tex]
[tex]1\frac{3}{4} *(-1,6)=\frac{7}{4}*(-1\frac{3}{5} )=\frac{7}{4}*(-\frac{8}{3} )=-\frac{14}{3} =-4\frac{2}{3}[/tex]
[tex](-1\frac{1}{2})^{2} =(-\frac{3}{2} )^{2} =(-\frac{3}{2} )(-\frac{3}{2} )=\frac{9}{4} =1\frac{1}{4}[/tex]
[tex](-1\frac{1}{2} )^{3} =(-\frac{3}{2} )(-\frac{3}{2} )(-\frac{3}{2} )=-\frac{27}{8} =-3\frac{3}{8}[/tex]
Oblicz wartość wyrażenia:
[tex](-1,5)^{2} -(-1,8):(-2\frac{4}{7} )=(-\frac{3}{2} )^{2} -(-1\frac{4}{5} ):(-\frac{18}{7} )=\frac{9}{4} -(-\frac{9}{5} )*(-\frac{7}{18} )=\\\\\frac{9}{4} -\frac{7}{10} =-\frac{45}{20} -\frac{14}{20} =-\frac{59}{20} =-2\frac{19}{20}[/tex]
[tex]-2\frac{2}{9} :3-(-\frac{1}{3} )^{3} =-\frac{20}{9} *\frac{1}{3} -(-\frac{1}{27} )=-\frac{20}{27} +\frac{1}{27} =-\frac{19}{27}[/tex]
