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calculati: repede plsss

Calculati Repede Plsss class=

Răspuns :

Răspuns:

= [(-2/3)⁶:(-2/3)⁴+(2/3)⁸:(-2/3)⁶]:(-2/3)²

=[(2/3)²+(2/3)²]:(-2/3)²

=(4/9+4/9):(-2/3)²

=8/9:4/9

=8/9×9/4

=2

(14/21)⁽⁷=2/3

(18/27)⁽⁹=2/3

(8/12)⁽⁴=2/3