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7.efectuati:c)-2,(3)+1 intreg si 1/3-(-1)


Răspuns :

-2,(3)+1 1/3-(-1)=

=-21/9+4/3-(-1)

=21/9+12/9+1

=33/9 +1

=33/9+1/1

=33/9+9/9

=42/9

SPER CA TE AM AJUTAT