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aratati ca 1-1 supra 2 la puterea 2 plus 3 supra 4 egal cu 1

Răspuns :

[tex](1- \frac{1}{2})^2+ \frac{3}{4}=( \frac{1}{2})^2+ \frac{3}{4}= \frac{1}{4}+ \frac{3}{4}= \frac{4}{4}=1 [/tex]