Lojalna36
Rozwiązane

Oblicz:
[tex]3( \sqrt{5} )^{2} [/tex]
[tex]3 \sqrt{2 } \times 5 \sqrt{2} [/tex]
[tex]( \frac{3}{5} \sqrt{10} ) ^{2} [/tex]
​Daje naj



Odpowiedź :

Obliczenia :

[tex]3\cdot(\sqrt5)^2=3\cdot5=\boxed{15}\\\\3\sqrt2\cdot5\sqrt2=3\cdot5\cdot(\sqrt2)^2=15\cdot2=\boxed{30}\\\\(\frac{3}{5}\sqrt{10})^2=(\frac{3}{5})^2\cdot(\sqrt{10})^2=0,36\cdot10=\boxed{3,6}[/tex]