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(−2pe 3 ) la patrat⋅[0.(3)+ 1/2÷(−0.75) ] =?


Răspuns :

[tex]( -\frac{2}{3}) ^{2-[ \frac{3}{9}+ \frac{1}{2} :( -\frac{75}{10}) ] } = \frac{4}{9}-( \frac{3}{9}+ \frac{1}{15})= \frac{4}{9}-( \frac{1}{ 3}+ \frac{1}{15} )= \frac{4}{9}- \frac{6}{15}= \frac{2}{45} [/tex]