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a=2,5 b= minus 12 supra 10 , calculati a ori b

Răspuns :


[tex]a = 2.5 = \frac{25}{10} [/tex]

[tex]b = - \frac{ 12}{10} = - \frac{6}{5} [/tex]

[tex] \frac{25}{10} \times - \frac{6}{5} = \frac{15}{5} = 3[/tex]
Succes!