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Aflati valoarea expreaiei: va roggggggggggggggggggggggggggggg

Aflati Valoarea Expreaiei Va Roggggggggggggggggggggggggggggg class=

Răspuns :

[tex]b)~(-2)^{-2}+ \big(\frac{1}{2} \big)^{-3}+ \big( \frac{1}{7} \big)^0= \\ \\ = \frac{1}{(-2)^2}+ 2^3+1= \\ \\ = \frac{1}{4}+8+1= \\ \\ = \frac{1}{4}+9= \\ \\ = \frac{37}{4}. [/tex]