A.   \(1\)
B.   \(2\)
C.   \(\sqrt2\)
D.   \(\large\frac23\)
E.   \(\large\frac49\)
    A    B    C    D    E

[ 6-8985 - op net sinds 6.12.2024-(E)- ]

Translation in   E N G L I S H

Oplossing - Solution

We gaan de basis van het grondtal veranderen met de ‘CHANGE OF BASE”-formule : we gaan over naar Briggse logaritmen.
\(\large\log_{\sqrt8}{\ \sqrt[3]{4}}=\frac{\log{\sqrt[3]{4}}}{\log{\sqrt8}}=\frac{\frac{1}{3}\log{2^2}}{\frac{1}{2}\log{2^3}}=\frac{\frac{1}{3}.\,2.\log{2}}{\frac{1}{2}.\,3.\log{2}}=\frac{2}{3}.\frac{2}{3}=\frac{4}{9}\)
GWB