-(0.4) во 2 степени :(1.4-1 3/7). Created by jubasima777. algebra-ru

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$-(0.4)^{2} : (1.4-1\frac{3}{7})=5.6\\ 1)1.4-1\frac{3}{7} =1\frac{4}{10}-1\frac{3}{7}=\frac{14}{10} -\frac{10}{7} =\frac{14*7-10*10}{10*7} =-\frac{2}{70} =-\frac{1}{35} \\ 2)-(0.4)^{2} = -0.16\\ 3)-\frac{16}{100} : (-\frac{1}{35} )=-\frac{16}{100} *\frac{35}{1} = \frac{16*35}{100*1} =\frac{560}{100} =5.6$

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Magnitogorskru -0,16

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Magnitogorskru

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-(0.4) во 2 степени :(1.4-1 3/7)= -0,16:(7/5-10/7)=-0,16:(49-50/35)= -0,16:(-1/35)=-4/25*(-35/1)=28/5=5 3/5=5,6

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