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P Pi Pi/[(1+i)n-1] Pi+Pi/[(1+i)n-1]
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投资回收通常用提取折旧的方式获得 投资回报常常表现为投资者所获得的或期望获得的收益率 在公式A=P×[i(1+i)n]/[(1+i)n-1]=Pi+Pi/[(1+i)n-1]中,Pi就是投资者投入资本P后获得的投资回收 在公式A=P×[i(1+i)n]/[(1+i)n-1]=Pi+Pi/[(1+i)n-1]中,Pi/[(1+i)n-1]就是投资者投入资本P后获得的投资回收
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当NPV>0时,IRR>i,PI<1 当NPV>0时,IRR>i,PI>1 当NPV<0时,IRR>i,PI<1 当NPV<0时,IRR>i,PI>1
投资回收通常用提取折旧的方式获得 投资回报常常表现为投资者所获得的或期望获得的收益率 在公式A=P[i(1+i)n]/[(1+i)n-1]=Pi+Pi/[(1+i)n-1]中,Pi就是投资者投入资本P后获得的投资回收 在公式A=P[i(1+i)n]/[(1+i)n-1]=Pi+Pi/[(1+i)n-1]中,Pi/[(1+i)n-1]就是投资者投入资本P后获得的投资回收
i=20sin(100πt+30°) i=10sin(50πt+30°) i=14.14sin(50πt+30°) i=14.14sin(100πt+30°)