(1)999 people
(2)
Solution: (1) Let the frequencies represented by the four rectangles in Figure A be,
The country is rich and strong, and the people are duty-bound. We should all open our eyes and guide the people to the light.
It makes people angry! T
The formula for finding roots is a mathematical formula for directly expressing roots by the coefficients of equations. This formula was given by Alhualamo in Central Asia as early
1. Should I take a math test in graduate education?
1. Graduate students who want to take an education exam don't need to take a math exam.
2. Th