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cat face ((0,7)La put 2)la put 0-[(-4,5)la put -2] ajutoor??? ma ajuta cnva???

Răspuns :

0,7^2=0,49
(-4,5)^-2= (-45/10)^-2=(-9/2)^-2= -2/81
(0,49)^0=1
1-(-2/81)=1+2/81 amplificãm pe 1 cu 81 =81+2/81=83/81