以下知识是数学的重难知识点,考前有必要多关注:
1.行列式与矩阵
2.复数
3.高次方程求根
4.线性规划与应用
5.极限与渐近线求法
6.计数原理和排列组合
7.统计概率相关
8.三角函数相关知识
同时,有些题目涉及费用计算、工程作业、空间几何等问题,也常常可能成为失分的题目。
一些容易忽略的知识点:
多边形内角和、外角和公式;
The sum of the interior angles of a polygon with n sides is (n – 2)180º.
The sum of the exterior angles of any polygon is 360º.
圆弧长和弧度计算;
The arclength formula is:
where nis the measure of the degree of the arc and r is the radius.
椭圆和双取钱的方程和图像;
Ellipses椭圆
Thestandard form of the equation of an ellipse is:
Thecenter of the ellipse is (h, k).
Hyperbolas双曲线
Thestandard form of the equation of a hyperbola that opens to the sides is:
where a,b, h, and k are constants. The standard form of theequation of a hyperbola that opens upward and downward is the same as the sideform except that the (x – h) and (y – k) terms areinterchanged:
Thecenter of a hyperbola is (h, k), and the axis of symmetry is theline x = h for vertical hyperbolas or y = k forhorizontal hyperbolas.
排列组合与概率:
A permutation is an ordering of elements. A combination is anunordered grouping of a set. An example of a scenario in which order doesn’tmatter is a hand of cards: a king, ace, and five is the same as an ace, five,and king.
等差数列前n项和的公式:
复数(ComplexNumbers)的计算;
A complex number is the sum of a real number and an imaginarynumber. A complex number is written in the form of a + bi, where aand b are real numbers, and i =
矩阵的乘法(Matrixmultiplication);
函数的渐近线(asymptote)
Asymptote
A line thata curve approaches, as it heads towards infinity