Dave's Web Corner

MTH-121 Week 2 (September 1-7)

• Outline
• Assessments
• Handouts
• Videos
• Technology

Outline

Delta College Labor Day Break

• Monday, September 2-Tuesday, September 3 (no class sessions)

1.4 Introduction to Identities

• recommended problems
  • 9, 13, 15, 19, 23, 31, 32, 37, 41, 47, 55
• learning objectives
  • find the value of a trigonometric function, given the value of its reciprocal
  • find the ratio identity of a given trigonometric function
  • solve problems involving Pythagorean identities

1.5 More on Identities

• recommended problems
  • 11, 13, 19, 31, 41, 51, 59, 61, 63, 75
• learning objectives
  • write a trigonometric function in the terms of another trigonometric function
  • simplify algebraic expressions involving trigonometric functions
  • prove trigonometric identities using the six basic identities and algebra

Assessments

• All assessments are completed at https://www.xyzhomework.com
• Calendar of all XYZ Homework assessment deadlines (homework, quizzes, exams)
• Homework
  • Homework 2 due by 11:59pm, Saturday, September 7: Sections 1.4, 1.5
  • Homework 3 due by 11:59pm, Saturday, September 14: Sections 2.1, 2.2, 2.3, 2.4
• Quiz
  • Quiz 1 due by 11:59pm, Tuesday, September 10: Chapter 1
  • Quiz 2 due by 11:59pm, Tuesday, September 24: Chapter 2
• Exam
  • Exam 1 due by 11:59pm, Thursday, September 26: Chapters 1, 2

Handouts

• Announcements
  • Schmidt Award
  • Math Graduate Award
  • Honors Program introduction
  • Tutoring Center services
• Graph Paper is a folder containing a variery of graph paper
  • Rectangular Grids 1 Large Coarse
  • Rectangular Grids 1 Large Medium
  • Rectangular Grids 3 Small
  • Rectangular Grids 6 Small
  • Rectangular Grids 3 Wide
• Formulas
  • Fundamental Trigonometry Identities
• Rationalizing Denominators
  • Rationalizing Denominators
  • Rationalizing Denominators Examples
• Angles
  • Angles
  • Angle Relationships and Similar Triangles
  • Angle Between Clock Hands
• Trigonometric Functions
  • Trigonometric Functions
  • Exact Values
  • Using the Definitions of Trigonometric Functions

Videos

• Playlists
  • MTH-121 Recommended Problems
  • MTH-121 Topics
• Recommended Problems
  • Chapter 1
    • 1-5-61
• Topics
  • Right Triangles
    • Three Famous Right Triangles
  • Similar Triangles
    • Using Similar Triangles
  • Trigonometric Functions
    • Defining the Trigonometric Functions
  • Simplifying and Identities
    • Simplifying to Expressions with Sine and Cosine
  • Right Triangle Trigonometry
    • Two Right Triangles I
    • Two Right Triangles II

Technology

• Communication
  • Zoom
  • Microsoft Lens
  • Apple Notes
  • Adobe Scan
  • Joining a Zoom Webinar
• Calculator
• Desmos
  • A Line Through Two Points
  • The Vertex Form of a Parabola