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Precalculus Study Guide: Triangles, Polar Coordinates, Vectors, Complex Numbers, and Conic Sections

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Solving Right Triangles

  • Finding Missing Side Lengths
    4:18
  • Example 2
    3:22
  • Finding Missing Angles
    5:13

Law of Sines

  • Solving SSA Triangles ("Ambiguous" Case) Example 1
    4:02
  • Solving SSA Triangles ("Ambiguous" Case)
    9:50
  • Solving SAA & ASA Triangles
    7:23

Law of Cosines

  • Solving SAS & SSS Triangles
    7:50
  • Intro to Law of Cosines
    4:35

Polar Coordinate System

  • Guided course
    Determining Different Coordinates for the Same Point Example 2
    3:00
  • Guided course
    Intro to Polar Coordinates Example 1
    2:13
  • Guided course
    Intro to Polar Coordinates
    5:32

Convert Points Between Polar and Rectangular Coordinates

  • Guided course
    Convert Points from Rectangular to Polar Example 1
    2:21
  • Guided course
    Convert Points from Polar to Rectangular
    6:17
  • Guided course
    Convert Points from Rectangular to Polar
    6:58

Convert Equations Between Polar and Rectangular Forms

  • Guided course
    Convert Equations from Polar to Rectangular
    6:50
  • Guided course
    Convert Equations from Rectangular to Polar Example 1
    3:28
  • Guided course
    Convert Equations from Polar to Rectangular Example 2
    3:03

Geometric Vectors

  • Multiplying Vectors By Scalars
    05:05
  • Multiplying Vectors By Scalars Example 1
    03:12
  • Adding Vectors Geometrically
    05:29

Unit Vectors and i & j Notation

  • Unit Vector in the Direction of a Given Vector Example 1
    02:17
  • i & j Notation
    06:01
  • Unit Vector in the Direction of a Given Vector Example 2
    05:21

Direction of a Vector

  • Finding Direction of a Vector Example 1
    04:19
  • Finding Direction of a Vector
    05:13
  • Finding Components from Direction and Magnitude
    04:55

Dot Product

  • Introduction to Dot Product
    5:40
  • Find the Angle Between Vectors
    04:33

Graphing Complex Numbers

  • How To Plot Complex Numbers
    03:47

Polar Form of Complex Numbers

  • Converting Complex Numbers from Polar to Rectangular Form
    03:58
  • Complex Numbers In Polar Form
    04:47

Products and Quotients of Complex Numbers

  • Quotients of Complex Numbers in Polar Form
    03:40
  • Products of Complex Numbers in Polar Form
    04:46

Introduction to Conic Sections

  • Geometries from Conic Sections
    3:08

Parabolas

  • Parabolas as Conic Sections
    05:33
  • Horizontal Parabolas
    05:28
  • Parabolas as Conic Sections Example 1
    07:12

Ellipses: Standard Form

  • Graph Ellipses at Origin
    05:12
  • Graph Ellipses NOT at Origin
    04:50
  • Foci and Vertices of an Ellipse
    05:30

Hyperbolas at the Origin

  • Graph Hyperbolas at the Origin
    04:20
  • Graphing Hyperbolas at the Origin Example 1
    03:58
  • Introduction to Hyperbolas
    06:15

Hyperbolas NOT at the Origin

  • Graph Hyperbolas NOT at the Origin
    05:59

Circles

  • Circles in Standard Form
    5:18
  • Circles in General Form
    06:20
  • Circles in Standard Form Example 1
    03:40