Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.
| rev | Admin | (Created page with "'''Solution: C''' <math display = "block"> \begin{align*} \ {\frac{\left(1-d/2\right)^{-4}}{\left(1-d/4\right)^{-4}}}=\left({\frac{39}{38}}\right)^{4}\Rightarrow{\frac{1-d/2}{1-d/4}}={\frac{38}{39}}\Rightarrow39-39(d/2)=38-38(d/4) \\ d(39/2 -38/4) = 39-38 \\ d = 1/(19.5-9.5)=0.1 \\ 1+i=\left(1-d/\,2\right)^{-2}=95^{-2}=1.108\Longrightarrow i=10.8 \% \end{align*} </math> {{soacopyright | 2023 }}") | Nov 17'23 at 22:47 | +399 |