|
A. \(1\) |
B. \(2\) |
C. \(\sqrt2\) |
D. \(\large\frac23\) |
E. \(\large\frac49\) |
[ 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.
\(\large\log_{\sqrt8}{\ \sqrt[3]{4}}=\frac{\log{\sqrt[3]{4}}}{\log{\sqrt8}}=\frac{\frac{1}{3}\log{2^2}}{\frac{1}{2}\log{2^3}}=\frac{\frac{1}{3}.\,2.\log{2}}{\frac{1}{2}.\,3.\log{2}}=\frac{2}{3}.\frac{2}{3}=\frac{4}{9}\)