Výpočet odmocnin
Vypočítej bez použití kalkulačky:
\large \sqrt {30} \cdot \sqrt {420} \cdot \sqrt {14}
\large 2^3 \cdot 3 \cdot 5 \cdot 7= 8 \cdot 3 \cdot 5 \cdot 7 = 840
\large 2^2 \cdot 3 \cdot 5 \cdot 7= 4 \cdot 3 \cdot 5 \cdot 7 = 420
\large 2^2 \cdot 3^2 \cdot 5 \cdot 7= 4 \cdot 9 \cdot 5 \cdot 7 = 1260
\large 2^2 \cdot 3 \cdot 5^2 \cdot 7= 4 \cdot 3 \cdot 25 \cdot 7 = 2100
Tvým úkolem je zapsat přesnou hodnotu jednotlivých výrazů. Budeš používat vzorec \large \sqrt {a \cdot b} a následně rozkládat čísla na prvočinitele.
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