One of my mathematical models only got 27 points in the college entrance examination. Who will help me? I just want to get 50 points.

I sympathize with you. Yes, you just need to master trigonometric functions, solid geometry, and proportional, arithmetic progression, ellipse or parabola. Specifically, you must master the knowledge of trigonometric functions, including the transformation between sin, cos and tan, and remember that SINX 2+COS 2 = 1, TANX * COTX = 1. And solid geometry must master the establishment of rectangular coordinate system. As long as you master this, you will definitely win solid geometry. There are 20 points for solid geometry and trigonometric function, and some points for minor problems. And you must know the general formulas of arithmetic And geometric series: for example, the sum of arithmetic series is known: the first term a 1, the last term an, tolerance d, an=a 1+(n- 1)*d, the nth term and sn = [(a1+an. The basic equations of ellipse and parabola: X 2/A 2+Y 2/B 2 = 1, Y 2 = 2px, hyperbolic equation: X 2/A 2-Y 2/B 2 = 1. Remember this, big problem. And you will get some points for minor problems, and 50 points will definitely be done! Anyway, as long as you read the textbook and master the basic formula, 50 points is no problem!

Wish you success! And to your mother!