Pre-Calculus Videos

Logic - Truth Tables

Solving Quadratic Equations by Factoring

Square Root Property

Completing the Square

Quadratic Formula

Equations With Rational Exponents

Solving Polynomial Equations by Factoring

Radical Equations (See Examples Below)

Example 1 Example 2 Example 3 Example 4

Absolute Value Equations

Quadratic in Form (See Examples Below)

Examples 1 & 2

Examples 3 & 4

Examples 5 & 6

Evaluating Functions

Vertical Line Test

Evaluate a Function From a Graph

Domain of a Rational Function

Domain of a Square Root Function

Domain of a Function from its Graph

Evaluating Piecewise Functions

Intervals a Function is Increasing and Decreasing From its Graph

Average Rate of Change

Evaluating Operation on Functions

Operations With Function

Composition of Functions (See Examples Below)

Example 1

Example 2

Odd and Even Functions

Transformation of Graphs

Finding the Inverse of a Function

Determining if Two Functions are Inverses

Minimum and Maximum Value of a Quadratic Function

End Behavior

Find Equation of Polynomial Given Conditions (See Examples Below)

Example 1

Example 2

Example 3

Long Division of Polynomials

Synthetic Division

Zeros of a Polynomial (See Examples Below)

Example 1

Example 2

Example 3

Example 4

Domain of a Rational Function

Vertical Asymptotes

Horizontal Asymptotes

Graphing Exponential Functions

Exponential Form to Logarithmic Form

Logarithmic Form to Exponential Form

Evaluate Logarithms Without a Calculator

Graphing Logarithmic Functions

Expanding Logarithms

Condensing Logarithms

Exponential Equations (Getting Bases the Same)

Exponential Equations (Can't Get Bases the Same)

Logarithmic Equations

Logarithmic Application (See Examples Below)

Example 1 Example 2 Example 3

Cofunctions

Right Triangles (Evaluate Trig Functions)

Applications Right Triangles (See Examples Below)

Example 1 Example 2 Example 3 Example 4 Example 5 Example 6

Radians to Degress

Degrees to Radians

Arc Length of a Circle

Area of the Sector of a Circle

Angular Velocity (See Examples Below)

Example 1

Example 2

Example 3

Find Trig Values Given a Point

Find Remaining Trig Values Given One Trig Value

Reference Angles

Find Trig Values Using Reference Angles

Amplitude, Period, Phase Shift

Find Equation Given Its Graph See Examples Below)

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Inverse Trig Functions (See Examples Below)

Part 1 Part 2 Part 3 Part 4

Pythagorean Theorem

Trig Identities (See Examples Below)

Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Example 10

Evaluating Trig Functions Using Sum and Difference Identities (See Examples Below)

Example 1

Example 2

Sum and Difference Identities (See Examples Below)

Example 1

Example 2

Example 3

Example 4

Evaluating Trig Functions Using Half Angle Identities

Half Angle Identities (See Examples Below)

Example 1

Example 2

Evaluating Trig Functions Using Double Angle Identities

Double Angle Identities (See Examples Below)

Example 1

Example 2

Example 3

Product to Sum Identities

Solving Trig Equations (See Examples Below)

Examples 1 & 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9

Law of Sines (See Below)

Part 1 Part 2 Part 3

Law of Cosines

Area of a Triangle

Applications

Convert Polar Coordinates to Rectangular Coordinates

Convert Rectangular Coordinates to Polar Coordinates (See Examples Below)

Example 1 Example 2 Example 3 Example 4 Example 5

Rectangular to Polar Form

Polar Form to Rectangular Form

Multiplying Numbers in Trigonometric Form

Dividing Numbers in Trigonometric Form

Nth Root Theorem (See Examples Below)

Example 1

Example 2

Magnitude and Direction of a Vector (See Examples Below)

Example 1 Example 2 Example 3 Example 4

Component Form of a Vector

Operations With Vectors

Horizontal and Vertical Components

Dot Product

Angle Between Two Vectors

Matrices Multiplying by a Scalar

Adding and Subtracting Matrices

Multiplying Matrices

System of Equations Gaussian Elimination (See Examples Below)

Example 1 Example 2 Example 3

Inverse of a 2 X 2 Matrix

Inverse of a 3 X 3 Matrix

Solve System of Equations Using the Inverse of a Matrix

Determinant of a 2 X 2 Matrix

Determinant of a 3 X 3 Matrix