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( 3 - 1 supra 3 ) totul la a doua + ( 2 - 1 supra 2 ) totul la a doua - 1 intreg si 1 supra 2 ) totul la a doua




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Răspuns :

Pix20

([tex]\dfrac{3-1}{3})^{2}+( \dfrac{2-1}{2})^{2}-(1 \dfrac{1}{2})^{2}[/tex]

( [tex]\dfrac{2}{3})^{2}+( \dfrac{1}{2})^{2}-( \dfrac{3}{2})^{2}[/tex]

[tex]\dfrac{4}{9}[/tex]+ [tex]\dfrac{1}{4}[/tex]- [tex]\dfrac{9}{4}[/tex]

[tex]\dfrac{16+9+81}{36}[/tex]= [tex]\dfrac{106}{36}[/tex]= [tex]\dfrac{53}{18}[/tex]

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