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 ...
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...
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 ...
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...
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...