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Repede va rog doar cele inconjurate

Repede Va Rog Doar Cele Inconjurate class=

Răspuns :

a) ( - 1 / 5 )⁶ x ( - 1 / 5 ) ⁴ = ( - 1 / 5 ) ⁽ ⁶ ⁺ ⁴ ⁾ = ( - 1 / 5 ) ¹⁰   Adevarat

b)  ( - 1 / 9 )² : ( - 1 / 3 )² = ( - 1 / 3 )²   Adevarat

= ( - 1 / 3² )²  : ( - 1 / 3 )² =

= ( - 1 / 3 ) ⁴ : ( - 1 / 3 ) ² =

= ( - 1 / 3 ) ⁽ ⁴ ⁻ ² ⁾ =

= ( - 1 / 3 ) ²