📄️ The imaginary constant
Imaginary and complex numbers are based around a single letter, which
📄️ Complex numbers
A complex number is a number which contains both an imaginary part and a *real
📄️ Adding complex numbers
To add complex numbers, you simply add together the real parts and add together
📄️ Subtracting complex numbers
To subtract complex numbers, you simply subtract the real parts and subtract the
📄️ Multiplying a complex number by a real number
When multiplying a complex number by an integer, you multiply both the real part
📄️ Complex conjugate
A complex conjugate pair is a pair of two complex numbers which are
📄️ Multiplying a complex number by its conjugate
In the same way that multiplying a bracket involving a surd by the conjugate
📄️ Dividing complex numbers
To divide by a complex number, we can first make the denominator real.
📄️ Complex solutions to polynomials
📄️ Factorising polynomials with complex roots
Factor theorem
📄️ Relationship of roots and coefficients of a quadratic
The roots in polynomials are closely linked to the coefficients of that