Calcworkshop

Login
  • Home
  • Reviews
  • Courses
    • Algebra I & II
      • Intro Algebra
      • Solving Equations
      • Exponents
      • Polynomials
      • Factoring
      • Rationals
      • Graphing Linear Equations
      • Systems of Equations
      • Radicals
      • Functions & Statistics
    • Geometry
      • Basic Geometry
      • Reasoning & Proofs
      • Congruent Triangles
      • Quadrilaterals
      • Similarity
      • Triangles & Trig
      • Circles
      • Polygons & Circles
      • Volume & Surface Area
      • Transformations
    • Pre-Calculus
      • Trigonometry
        • Trigonometric Functions
        • Radian Measure
        • Graphing Trig Functions
        • Trig Identities
        • Trig Equations
        • Law of Sines and Cosines
        • Vector Applications
        • Polar Equations
        • Complex Numbers
      • Math Analysis
        • Intro to Math Analysis
        • Functions and Graphs
        • Expos and Logs
        • Polynomial Functions
        • Rational Functions
        • Conic Sections
        • Series & Sequences
    • Calculus 1, 2, & 3
      • Business Calculus
      • Calculus 1
        • PreCalc Review
        • Limits
        • Derivatives
        • Application of Derivatives
        • Integrals
        • Final Exam
      • Calculus 2
        • Integrals
        • Applications of Integrals
        • Diff-EQs
        • Polar Functions
        • Parametric and Vector Functions
        • Sequences and Series
        • Final Exam
      • Calculus 3
        • Vectors and The Geometry of Space
        • Vector Functions
        • Partial Derivatives
        • Multiple Integrals
        • Vector Calculus
        • Final Exam
    • Statistics & Prob
      • Exploring Data
      • Probability
      • Discrete Distribution
      • Continuous Distribution
      • Joint Distribution
      • Confidence Interval
      • Hypothesis Testing
      • Linear Regression
    • Discrete Math
      • Logic
      • Proofs
      • Sets
      • Number Theory
      • Functions
      • Combinatorics
      • Relations
      • Trees & Graphs
    • Linear Algebra
      • Linear Equations
      • Matrix Algebra
      • Determinants
      • Vector Spaces
      • Eigenvalues and Eigenvectors
      • Orthogonality and Least Squares
      • Symmetric Matrices
      • Final Exam
    • Diff-EQs
      • Intro to DiffEqs
      • First Order Differential Equations
      • Second Order Differential Equations
      • Series Solutions
      • Laplace Transform
      • Systems of Differential Equations
      • Final Exam
    • Praxis
  • FAQs
  • About
  • Contact
  • Login
Home » Trigonometric Functions

Learn Trigonometric Functions
Step-by-Step Guide

Boost your math skills—confidently tackle trigonometric problems—unlock your full potential in mathematics!

Interval Notation

1 hr 8 min 14 Examples

  • Intro to Video: Interval Notation and Relations and Functions
  • Lesson Overview and Review of Pythagorean Theorem and Distance Formula
  • Example: Calculate the distance between two points
  • What is a Relation? How do we determine Domain and Range?
  • How can we describe a function?
  • Overview of Interval Notation with Examples
  • Interval Notation: 6 examples
  • Interval Notation: 4 examples
  • Examples: #1-5: Give the Domain and Range and tell whether it is a function

Coterminal Angles

58 min 25 Examples

  • Intro to Video: Coterminal Angles and Angles and the Coordinate Plane
  • Overview of Angles and Their Measure
  • Standard Position and Coterminal Angles
  • Examples: #1-4: Sketch each angle in standard position and determine degree measure
  • Examples: #5-10: Sketch each angle in standard position and determine Quadrant in which is lies
  • Three Examples – Given an angle in standard position, find a coterminal angle and sketch
  • Two Examples – Given an angle in standard position find two coterminal angles
  • Examples: #1-6: Determine the Quadrant(s) for each angle
  • Four Examples – Find a coterminal angle within a specified domain

Reference Triangles

1 hr 23 min 18 Examples

  • Intro to Video: Reference Triangles and Sine, Cosine, and Tangent
  • Overview of Reference Triangles, Reference Angles, and SOH-CAH-TOA
  • Theorem for Reference Triangles and Trigonometric Functions with Examples
  • Two Examples – Given the terminal side of an angle passing through a point, sketch the reference triangle and evaluate sine, cosine, and tangent
  • Example – Given the terminal side of an angle passing through a point, sketch the reference triangle and evaluate sine, cosine, and tangent
  • Examples #1-4: Given one trigonometric value and terminal quadrant, find the other trigonometric functions
  • What have we discovered about the trigonometric values and quadrants? Fun saying!
  • Ten Examples – State the Quadrant(s) in which the angle lies

Reference Angles

1 hr 24 min 17 Examples

  • Intro to Video: Reference Angles and Cosecant, Secant, and Cotangent
  • Overview of Reference Angles and How to find Them
  • Examples #1-10: Find the Measure of the Reference Angle and Sketch
  • The Six Trigonometric Functions
  • Two Examples – Sketch the Angle and Evaluate all Six Trig Functions
  • Example – Sketch the Angle and Evaluate all Six Trig Functions
  • Example – Given the Measure of an Angle in a quadrant, evaluate the other 5 Trig Functions
  • Two Examples – Given the Measure of an Angle in a quadrant, evaluate the other 5 Trig Functions
  • Three Examples: State the Quadrant(s) in which the angle lies
  • Example – Express each function in terms of the same function of the reference angle

Cofunctions

36 min 7 Examples

  • Intro to Video: Cofunctions and Complementary and Supplementary Angles
  • Overview and Four Examples of Complementary and Supplementary Angles
  • Overview of Cofunctions
  • Example #1-3 – Express each function in terms of the same function of the Reference Angle

Degrees Minutes Seconds

29 min 9 Examples

  • Intro to Video: Degrees Minutes Seconds
  • Overview of Degrees Minutes Seconds (DMS)
  • Steps for Converting from DMS to Decimal Degree
  • Three Examples: Convert each angle from Degrees Minutes Seconds into Decimal Degree
  • Steps for Converting from Decimal Degree to Degrees Minutes Seconds
  • Two Examples: Convert each angle from Decimal Degree to Degrees Minutes Seconds
  • Examples #1-4: Calculating with Degrees Minutes Seconds

Angles of Elevation and Depression

57 min 5 Examples

  • Intro to Video: Angle of Elevation and Depression
  • Overview of Angle of Elevation and Depression
  • Example: Angle of Elevation from a Radar Antenna to an Airplane
  • Example: Angle of Depression from a Lighthouse to a Buoy
  • Surveying Example: Find the Distance Across a Lake
  • Example: Angle of Elevation & Depression to determine height of building
  • Example: Angle of Depression to find the distance between two boats

Applications of Right Triangles

43 min 5 Examples

  • Intro to Video: Applications of Right Triangles – Navigation and Construction
  • Overview of Navigation and Important Terminology
  • Example: Determine the Bearing of a lighthouse from a ship
  • Example: Find the distance given a course and bearing
  • Overview of Construction and Important Terminology
  • Example: Find the Pitch of a Symmetrical Roof given the Rise and Span
  • Example: Find the Rise of a Symmetrical Roof given the Pitch and Span
  • Example: Find the length of the collar beam of a roof given the Pitch

Chapter Test

1 hr 19 min 20 Examples

  • Examples #1-2: Find the distance between points P and Q
  • Examples #3-4: Find the domain and range, and determine if a function
  • Examples #5-6: For each rotation, find the measure in degrees and sketch the angle
  • Examples #7-10: Convert to Decimal Degree or Degrees-Minutes-Seconds
  • Examples #11-12: Find all six trig values given a point on the terminal side of an angle
  • Examples #13-14: Find the 5 other trig functions given the angle in standard position
  • Examples #15-16: Express each angle in terms of the reference angle
  • Example #17: Angle of Depression determine line of sight
  • Example #18: Angle of Elevation determine hight of cliff
  • Example #19: Find the bearing
  • Example #20: Determine rafter length given the span
Calcworkshop

© 2026 Calcworkshop LLC / Privacy Policy / Terms of Service

  • About
  • Reviews
  • Courses
  • Plans & Pricing

Advertisement