6、 解 :(1) 方法Ⅰ:折现到起始点P1+P2 (P/F, i,5) =A1(P/A, i,4)+A2(P/A, i,5) (P/F, i,5) A 方法Ⅱ:折算到P2点 P1(F/P, i,5)+P2=A1(F/A, i,4) (F/P, i,1) +A2(P/A, i,5)
(2) P1+P2 (P/F, i,5) =A1(P/A, i,4)+A2(P/A, i,5) (P/F, i,5) P1(F/P, i,5)+P2=A1(F/A, i,4) (F/P, i,1) +A2(P/A, i,5)
(3) P1+P2 (P/F, i,5) =A1(P/A, i,4)+A2(P/A, i,5) (P/F, i,5) P1(F/P, i,5)+P2=A1(F/A, i,4) (F/P, i,1) +A2(P/A, i,5)