A-level选课哪些科目认可度最高？
A-Level作为英国学生的大学入学考试课程，同学们经常会在选课时犯了选择困难症，因为大家都会考虑这个学科的前景、现状以及在学界的受重视程度等等…… 想要申请英国大学比较热门的专业，小伙伴们还需要根据要求学...
CIE A Level Maths: Pure 3复习笔记8.1.2 Complex Conjugation & Division
Complex Conjugation & Division When dividing complex numbers, we can use the complex conjugate to make the denominator a real number, which makes carrying out the division much easier. What is ...
CIE A Level Maths: Pure 3复习笔记8.1.1 Intro to Complex Numbers
Complex Numbers – Basics What is an imaginary number? What is a complex number? Worked Example Exam Tip Complex Numbers – Basic Operations How do I add and subtract complex numbers? When adding and...
CIE A Level Maths: Pure 3复习笔记7.3.4 Uses of the Scalar Product
Uses of the Scalar Product This revision note covers several applications of the scalar product for vectors – namely, how you can use the scalar product to: find the angle between vectors or lines ...
CIE A Level Maths: Pure 3复习笔记7.3.3 The Scalar ('Dot') Product
The Scalar ('Dot') Product The scalar product is an important link between the algebra of vectors and the trigonometry of vectors. We shall see that the scalar product is somewhat comparable to the...
CIE A Level Maths: Pure 3复习笔记7.3.2 Parallel, Intersecting & Skew Lines
Parallel, Intersecting & Skew Lines In two dimensions, lines are either parallel or they intersect at a single point. If they are parallel, then either they have no points in common, or they sh...
CIE A Level Maths: Pure 3复习笔记7.3.1 Equation of a Line in Vector Form
Equation of a Line in Vector Form How do I find the vector equation of a line? You need to know: The position vector of one point on the line A direction vector of the line (or the position vector ...
CIE A Level Maths: Pure 3复习笔记7.2.2 Problem Solving using 3D Vectors
Problem Solving using 3D Vectors Problem-solving with 3-D vectors 3-D vector problems can be solved using the same principles as 2-D vector problems (see Problem Solving using Vectors) Vectors can ...
CIE A Level Maths: Pure 3复习笔记7.2.1 Vectors in 3 Dimensions
Vectors in 3 Dimensions What is a 3-D vector? Vectors represent a movement of a certain magnitude (size) in a given directionYou should have already come across (2D) vectors at AS (see Basic Vector...
CIE A Level Maths: Pure 3复习笔记7.1.5 Problem Solving using Vectors
Problem Solving using Vectors Problem-solving with vectors Vectors can be used to prove two lines are parallel (see Vector Addition) They can also be used to show points are collinear (lie on the s...
CIE A Level Maths: Pure 3复习笔记7.1.4 Position Vectors
Position Vectors What is a position vector? Position vectors describe the position of a point in relation to the origin They are different to direction vectors which describe the direction and dist...
CIE A Level Maths: Pure 3复习笔记7.1.3 Vector Addition
Vector Addition Vector addition Adding vectors together lets us describes the movement between two points The single vector this creates is called the resultant vector Subtracting a vector is the s...
