1. The principal is 1000 yuan, invest in a fund, annual fixed income is 5% (compound interest) 2. Investment in a fund, annual fixed income 5% (compound interest), someone invested 1000 yuan at the beginning of each year, 10 years in a row, ask after 10 years and interest (it's better to have the process and result, and the idea of solving the problem)

1. The principal is 1000 yuan, invest in a fund, annual fixed income is 5% (compound interest) 2. Investment in a fund, annual fixed income 5% (compound interest), someone invested 1000 yuan at the beginning of each year, 10 years in a row, ask after 10 years and interest (it's better to have the process and result, and the idea of solving the problem)

Do you want to ask this?
1. First year: 1000 + 1000 * 5% = 1000 (1 + 5%)
The second year: 1000 (1 + 5%) + 1000 (1 + 5%) 5% = 1000 (1 + 5%) (1 + 5%) = 1000 (1 + 5%)
The second power of
.
The nth year: the nth power of 1000 (1 + 5%)
Therefore, the total amount in the 10th year should be the 10th power of 1000 (1 + 5%) = 1628.89 (yuan)
2. The difference between this question and the previous one is that it increases 1000 yuan at the beginning of each year. Typing is too tiring
First year: 1000 + 1000 * 5% = 1000 (1 + 5%)
The second year: the second power of 1000 (1 + 5%) + 1000 (1 + 5%)
.
The 10th year: the 10th power of 1000 (1 + 5%) + the 9th power of 1000 (1 + 5%) + 1000 (1 + 5%) = 67349 (yuan)
Hope to make you satisfied!