65,438+0,65,438+0,000 yuan multiplied by 65,438+0.65,438+05 to the power of 65,438+02, the profit of stock trading shall be calculated according to compound interest, unless it is specifically stated that the profit directly exits the stock market. Since it is 15% profit, it must be deducted from the commission.

2. 1* 1. 15 12 power +0. 1 * 11power. 2000 yuan is the same.

3. Let's assume X years, that is, the power of1*12x+0.2 *1.15 (12x-/kloc-

) Power +...+0.2 * 1. 15 is equal to 100, but I wonder if there is any special method for this calculation in senior high school. Is the computer allowed, or are both sides multiplied by 1. 15, and then the original equation is subtracted?