Idontknow38viz
Rozwiązane

Jak obliczyć a²?
100=
[tex] 100 = \frac{1}{3} \times {a}^{2} \times 10 | [/tex]
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Odpowiedź :

Catta1eyaviz

[tex]100=\frac13*a^2*10\\10=\frac13a^2 /*3\\30=a^2\\\sqrt{30}=a[/tex]

Basetlaviz

[tex]100 = \frac{1}{3}\times a^{2}\times10 \ \ /:10\\\\\frac{1}{3}a^{2} = 10 \ \ /\cdot3\\\\a^{2} = 30\\\\a = \sqrt{30}[/tex]