4.Oblicz.
A. √2•√18= B. √200:√2= C. 7√2•6√50= D. 3√75:√3=
5.Zastąp symbole odpowiednimi liczbami.
A. √4•3=♣√3 √7•25=♥√7
B. √20=♥√5 √300=♣√3
C. √18=3√♣ √28=2√♥
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4
a)6
b)20
c)420
d)15