MathDB
Calculating Logarithms

Source:

February 1, 2009
logarithms

Problem Statement

If you are given log⁡8≈.9031 \log 8 \approx .9031 and log⁡9≈.9542 \log 9 \approx .9542, then the only logarithm that cannot be found without the use of tables is: <spanclass=′latex−bold′>(A)</span> log⁡17<spanclass=′latex−bold′>(B)</span> log⁡54<spanclass=′latex−bold′>(C)</span> log⁡15<spanclass=′latex−bold′>(D)</span> log⁡600<spanclass=′latex−bold′>(E)</span> log⁡.4 <span class='latex-bold'>(A)</span>\ \log 17 \qquad<span class='latex-bold'>(B)</span>\ \log \frac {5}{4} \qquad<span class='latex-bold'>(C)</span>\ \log 15 \qquad<span class='latex-bold'>(D)</span>\ \log 600 \qquad<span class='latex-bold'>(E)</span>\ \log .4
Back to ProblemsView on AoPS