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(1/2)la a doua * 6 - 1 = nu stiu :(

Răspuns :


[tex]( \frac{1}{2} ) {}^{2} \times 6 - 1 = \\ = \frac{1}{4} \times 6 - 1 = \\ = \frac{6}{4} - 1 = \\ = \frac{6 - 4}{4} = \\ = \frac{2}{4} = \\ = \frac{1}{2} [/tex]