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| revprev | Admin | Nov 26'23 at 22:40 | +19 | m | |
| revcur | Admin | (Created page with "Find accumulated amount of groups of 4 payments at years <math>4,8,12,16, \ldots, 40</math>. Call them <math>K_1, K_2, \ldots, K_{10}</math>. Then find PV. <math>\left\{K_1, \ldots, K_{10}\right\}=\left\{s_{\overline{4} \mid .05}, 1.1025 s_{\overline{4} \mid .05}, \ldots, 1.1025^9 s_{\overline{4} \mid .05}\right\}</math>. Note that <math>1.05^2=1.1025</math>. Thus <math display="block"> \begin{aligned} & P V=K_1 1.05^{-4}+K_2 1.05^{-8}+\cdots=K_1 1.1025^{-2}+K_2 1.1025^...") | Nov 26'23 at 22:38 | +1,003 |