• #### Multiplying and Dividing - Problem 1

##### Math›Pre-Algebra›Whole Numbers
Using opposite operations to solve one step equations that involve multiplication or division of whole numbers
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• #### Multiplying and Dividing Rationals - Problem 8

##### Math›Algebra›Rational Expressions and Functions
Using opposite binomials to factor and multiply rational expressions.
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• #### Special Isosceles Triangle Properties - Concept

##### Math›Geometry›Triangles
How to identify a segment from the vertex angle in an isosceles triangle to the opposite side.
• #### Transforming the Tangent Graph - Concept

##### Math›Trigonometry›Trigonometric Functions
How to graph y = tan(q) for one or more periods.
• #### Transforming the Tangent Graph - Concept

##### Math›Precalculus›Trigonometric Functions
How to graph y = tan(q) for one or more periods.
• #### The Resultant of Two Forces - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to find the resultant of two forces when they are parallel, opposite, or perpendicular in direction.
• #### Finding an Inverse Algebraically - Problem 4

##### Math›Algebra 2›Inverse, Exponential and Logarithmic Functions
How to solve the inverse of odd power functions.
• #### Transforming the Tangent Graph - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to graph y = -1/2 tan(?x).
• #### Trigonometric Identities - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to use the unit circle to show that cosine is an even function, and sine and tangent are odd functions.
• #### Graphing the Reciprocal Trigonometric Functions - Problem 3

##### Math›Trigonometry›Trigonometric Functions
How to graph y = cot q.
• #### Solving Trigonometric Equations - Problem 1

How to solve a simple cosine equation: cos x = ?2/2.
• #### Graphing the Reciprocal Trigonometric Functions - Problem 2

##### Math›Trigonometry›Trigonometric Functions
How to graph y = csc q.
• #### The Sine Addition Formulas - Problem 2

How to derive the sine of a difference formula and use it to find the sine of an angle.
• #### Transforming the Tangent Graph - Problem 3

##### Math›Trigonometry›Trigonometric Functions
How to graph y = -0.2 tan(2x - pi/4).
• #### Solving Trigonometric Equations - Problem 3

How to solve a simple trig equation involving secant.
• #### Transforming the Tangent Graph - Problem 2

##### Math›Precalculus›Trigonometric Functions
How to graph y = -1/2 tan(?x).
• #### Transforming the Tangent Graph - Problem 3

##### Math›Precalculus›Trigonometric Functions
How to graph y = -0.2 tan(2x - pi/4).