Autorzy:A. Drążek, E.Duvnjak, Ewa Kokiernak-Jurkiewicz
Wydawnictwo:WSiP
Rok wydania:2016
Oblicz.4.67 gwiazdek na podstawie 12 opinii

`a)`

`sqrt(25*64)=sqrt(25)*sqrt(64)=5*8=40`

`sqrt(81*16)=sqrt(81)*sqrt(16)=9*4=36`

`sqrt(9*100)=sqrt(9)*sqrt(100)=3*10=30`

`root(3)(27*64)=root(3)(27)*root(3)(64)=3*4=12`

`root(3)(8*1000)=root(3)(8)*root(3)(1000)=2*10=20`

`root(3)(125*(-64))=root(3)(125)*root(3)(-64)=5*(-4)=-20`

`b)`

`sqrt(121*0.04)=sqrt(121)*sqrt(0.04)=11*0.2=2.2`

`sqrt(169*0.09)=sqrt(169)*sqrt(0.09)=13*0.3=3.9`

`sqrt(289*0.25)=sqrt(289)*sqrt(0.25)=17*0.5=8.5`

`root(3)(0.001*1000)=root(3)(1)=1`

`root(3)(0.008*(-8))=root(3)(0.008)*|3|-8=0.2*(-2)=-0.4`

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