Autorzy:Praca zbiorowa
Wydawnictwo:GWO
Rok wydania:2016
Oblicz: 4.5 gwiazdek na podstawie 14 opinii

`a) \ sqrt{225}=sqrt{15^2}=15` 

`\ \ \ sqrt{144}=sqrt{12^2}=12` 

`\ \ \ sqrt{10 \ 000}=sqrt{100^2}=100` 
`ul(ul( \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ))` 


`b) \ sqrt{1 7/9}=sqrt{16/9}=4/3` 

`\ \ \ sqrt{2 14/25}=sqrt{64/25}=8/5` 

`\ \ \ sqrt{1 48/121}=sqrt{169/121}=sqrt{13^2/11^2}=13/11` 
`ul(ul( \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ))` 


`c) \ sqrt{3/48}=sqrt{1/16}=1/4` 

`\ \ \ sqrt{8/50}=sqrt{4/25}=2/5` 

`\ \ \ sqrt{20/45}=sqrt{4/9}=2/3` 
`ul(ul( \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ))` 


`d) \ sqrt{0,0004}=sqrt{4/(10 \ 000)}=2/100=0,02`  

`\ \ \ sqrt{1,69}=1,3` 

`\ \ \ sqrt{1,21}=1,1`