| 7 | |||||||||
po pierwszym miesiącu 220*(1+ | )=220*(1+ | ) | ||||||||
100 | 1200 |
7 | 7 | |||
po drugim miesiącu [220+220*(1+ | )]*(1+ | )= | ||
1200 | 1200 |
7 | 7 | |||
220*(1+ | )+220*(1+ | )2 | ||
1200 | 1200 |
7 | 7 | |||
∑k=1n 220(1+ | )k=220∑k=1n (1+ | )n | ||
1200 | 1200 |
1 | ||
K48=220*∑k=148 (1+ | )k | |
1200 |