• #### The Cosine Addition Formulas - Problem 3

How to evaluate cos(a ? b) and cos(a + b) when you know only sin(a) and cos(b).
• #### Solving and Graphing Inequalities using Addition or Subtraction - Problem 2

##### Math›Algebra›Solving and Graphing Inequalities
How to solve and graph one variable inequalities when the answer is a whole number.
• #### Addition and Subtraction with Mixed Numbers - Concept

##### Math›Pre-Algebra›Fractions and MIxed Numbers
Adding or subtracting mixed numbers by either converting them to improper fractions or working with the integer part and the fractional part separately
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• #### Solving and Graphing Inequalities using Addition or Subtraction - Problem 1

##### Math›Algebra›Solving and Graphing Inequalities
How to solve and graph one variable inequalities from a word.
• #### Solving and Graphing Inequalities using Addition or Subtraction - Problem 3

##### Math›Algebra›Solving and Graphing Inequalities
How to solve and graph real world problems using inequalities.
• #### Vector Operations in 3D - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to perform vector operations like addition, scalar multiplication, the dot product, and finding the magnitude, in three dimensions.
• #### Distributive - Concept

##### Math›Pre-Algebra›Properties of Numbers
Introduction to the distributive property of multiplication over addition or subtraction
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• #### Defining Variables - Problem 4

##### Math›Algebra›Pre-Algebra
Notation of multiplication versus addition or subtraction
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• #### Commutative, Associative - Concept

##### Math›Pre-Algebra›Properties of Numbers
Overview of the commutative and associative properties for addition and multiplication
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• #### Components of a Force - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to define the components of a vector.
• #### Multiplying and Dividing - Concept

##### Math›Pre-Algebra›Whole Numbers
Looking at how multiplication represents repeated addition, as well as special cases of multiplying and dividing whole numbers
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• #### Adding Vectors - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to add vectors geometrically two ways.
• #### Adding Vectors - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to plot the sum of two vectors and find its magnitude.
• #### Adding Vectors - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to plot the sum of two vectors and find its magnitude.

Tags:
• #### Components of a Force - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the horizontal and vertical components of a force.
• #### Multiplying Monomials and/or Binomials and FOIL - Problem 2

##### Math›Algebra›Polynomials
How to FOIL to multiply binomials using addition.
• #### The Vector Equation of a Line - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to write the vector equation of a line.
• #### The Resultant of Two Forces - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to find the resultant of two forces.
• #### The Resultant of Two Forces - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the resultant of two forces.