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, NPV 1RR ( )?




. , Microsoft Excel, (. 3). . 1) ] (r1); 2) (r1) > 0, r2, r2> r1.

(r2) < (r1). (r1) < 0, r2, r2 < r1. (r2) > (r1); 3) , (r2) < (r3) < (r1). , , (r) = 0.

, 2 (4 . .) , 7.9, : - 4 + 2/(1 + + r) + 4 / (1 + r)2 = 0. (r1 = 0). (r1) = 2 . . (r1 = 0) > 0, , . 50%, (r2 = 0,5) = = - 0,9 . . (r2) < 0, , }0%, 50%{. , 10%, 30%. 28% = 0. , = 28%.

-4

Excel (, ) (1:). : 0,280776406.

() (. 7.10).

, , . , , , . , . , . .





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