1, upper part: addition, subtraction, multiplication and division, legal connection; Bottom line: the bisector of the vertical line, and the line is twisted.
2. Shanglian: There is a time limit, and you are elected as the coordinate of life; Bottom line: In pursuit of no minimum, we must solve the life equation well.
3. Ascension: addition, subtraction, multiplication and division, and the normal algebra is a hundred years; Bottom line: points, lines and surfaces are geometrically fixed and grow old together.
4. The first part: Sine Theorem, Cosine Theorem and the philosophy of ordinary people; Descending: integral equation, fractional equation, the square on the road is the future.
5. Ascending: negative positive angle of keratinization, positive angle of small angle, special angle and small angle, special angle function value; Downlink: the value knows the terminal edge, the terminal edge knows the quadrant, and the quadrant knows the symbol, and the symbol judges the terminal edge of the angle.