According to the meaning in the question, one piece can hold 10 peaches, and after eating, there are 10 peaches. Exchange 9 peaches for 3 peaches, and then exchange the remaining 3 peaches for 1 peach. Plus the original peach beard ***2 peach beard, I borrowed another one and changed it. It was just clean after eating, and I ate 15 peaches.
This is actually a mathematical reciprocal calculation. Complex numbers are generally expressed in the form of real and imaginary parts, such as a+bi, where A is the real part and B is the imaginary part. In the calculation, it is necessary to ensure that the operations of the real part and the imaginary part are carried out separately and cannot be confused.
In the calculation involving complex numbers, attention should be paid to maintaining appropriate accuracy to avoid rounding errors affecting the calculation results. You can use calculation tools or programming languages to calculate complex numbers to improve accuracy and accuracy.
Skills of calculating mathematical problems
1. Discovering patterns: Discovering patterns or patterns is an important method to solve the problems of series and graphs. Observing the difference or ratio in the sequence and finding the law can help us predict the next number or deduce the general term formula.
2. Break down the problem: break down the big problem into small problems and solve them one by one. Sometimes, a big problem may seem complicated, but if we break it down into several simple steps, we can solve it more easily.
3. Use reverse thinking: For some difficult problems, it may be helpful to try to think in the opposite direction. For example, if you want to calculate the percentage of one number, you can imagine that this number is the percentage of another number. This kind of reverse thinking can help us find new ways to solve problems.
4. Using mathematical formulas and theorems: There are many formulas and theorems in mathematics, and mastering them skillfully and flexibly can help us solve problems faster. For example, geometry problems can use Pythagorean theorem, sine theorem, cosine theorem and so on.