• #### Atomic Number - Isotopes

##### Science›Chemistry›The Atom
The meaning and uses of atomic numbers.
• #### Introduction to Real Numbers - Concept

##### Math›Algebra 2›Real Numbers
How to classify different types of real numbers.
• #### Quantum Numbers

##### Science›Chemistry›The Atom
How to identify a specific electron in an atom's electron cloud using quantum numbers.
• #### Dividing Complex Numbers - Concept

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to divide two complex numbers in trigonometric form.
• #### Multiplying Complex Numbers - Problem 1

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to simplify a product of two complex numbers in trigonometric form.
• #### Properties of Real Numbers - Problem 1

##### Math›Algebra 2›Real Numbers
Tricks for remembering the associative and commutative properties of real numbers
Tags:
• #### Multiplying Complex Numbers - Concept

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to multiply two complex numbers in trigonometric form.
• #### Multiplying Complex Numbers - Problem 3

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the product of two complex numbers by converting them to trigonometric form.
• #### Trigonometric Form of Complex Numbers - Concept

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to express a complex number in trigonometric form.
• #### Finding the Roots of a Complex Number - Concept

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to use DeMoivre's Theorem to compute the cube roots of a complex number.
• #### More Roots of Complex Numbers - Problem 2

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to use four guidelines to find the fifth roots of a complex number.
• #### Dividing Complex Numbers - Problem 1

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to simplify a quotient of two complex numbers in trigonometric form.
• #### Dividing Complex Numbers - Problem 3

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the quotient of two complex numbers by converting them to trigonometric form.
• #### Addition and Subtraction with Mixed Numbers - Problem 3

##### Math›Pre-Algebra›Fractions and MIxed Numbers
Estimating sums and differences of mixed numbers
Tags:
• #### Converting Improper Fractions and Mixed Numbers - Problem 1

##### Math›Pre-Algebra›Fractions and MIxed Numbers
Rewriting an improper fraction as a mixed number
Tags:
• #### Properties of Real Numbers - Concept

##### Math›Algebra 2›Real Numbers
How to define the properties of real numbers.
• #### Converting Improper Fractions and Mixed Numbers - Concept

##### Math›Pre-Algebra›Fractions and MIxed Numbers
Vocabulary of improper fractions and mixed numbers
Tags:
• #### Multiplying and DIviding with Mixed Numbers - Problem 3

##### Math›Pre-Algebra›Fractions and MIxed Numbers
Estimating products and quotients of mixed numbers
Tags:
• #### Dividing Complex Numbers - Problem 2

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the quotient of two complex numbers in rectangular form, z1 = 6 - 6*i and z2 = 3 + 3*i, by converting them to trigonometric form.