Learn how to multiply two complex numbers. For example, multiply (1+2i)⋅ (3+i).

Discover how to multiply complex numbers! Just like multiplying regular numbers, you can use the distributive property or FOIL method. Remember, the imaginary unit 'i' squared equals -1. So, when …

We'll learn what imaginary and complex numbers are, how to perform arithmetic operations with them, represent them graphically on the complex plane, and apply these concepts to solve quadratic …

Learn how to multiply two complex numbers. For example, multiply (1+2i)⋅ (3+i). A complex number is any number that can be written as a + b i , where i is the imaginary unit and a and b are real numbers.

You may want to start go back earlier in the unit and work thru the lessons for addition & subtraction of complex numbers, and then multiplication of complex numbers.

We can multiply two complex numbers in polar form by multiplying their moduli and adding their arguments.

We can multiply complex numbers graphically on the complex plane. We rotate an amount equal to the argument and scale by the modulus of the complex number by which we're multiplying.

Multiply by the complex conjugate (ie, if you have a denominator in the form of a+bi, multiply by a-bi) on the top and bottom. This will cause the denominator to become real and you can divide through …

Multiplying a complex number by its conjugate results in a real number. This is useful for simplifying complex numbers and is similar to the difference of squares.

Multiply complex numbers by single terms that are either real or pure imaginary.