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revAdmin (Created page with "The present value of cash flows at an effective interest rate of i is given by the following function: <math display = "block"> P\left(i\right)=100+500\left(1+i\right)^{-3}-1000\left(1+i\right)^{-4},{}~{\mathrm{for}}\,i>0. </math> Determine which of the following expressions represents the modified duration of these cash flows. <ul class="mw-excansopts"><li><math display = "block">\frac{1500(1+i)^{-4}-4000(1+i)^{-5}}{100+500(1+i)^{-3}-1000(1+i)^{-4}}</math></li><li><...")Nov 20'23 at 1:21+946