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YouTube

Trigonometry - Angles, Functions, Laws, Unit Circle, Graphing, and Identities

Krista King via YouTube

Overview

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Learn fundamental trigonometry concepts through a comprehensive video playlist covering angles and their measurement, the six circular trigonometric functions, and essential laws including the law of sines and cosines. Master the unit circle and develop skills in graphing trigonometric functions while exploring various trigonometric identities. Discover how to find all six trigonometric functions and determine their values or identify when they are undefined. Practice proving trigonometric equations and applying sum-difference, even-odd, double-angle, half-angle, product-to-sum, and sum-to-product identities. Solve real-world problems involving angles of elevation to determine heights and distances. Explore coordinate system conversions between polar and rectangular forms, and learn to sketch various polar curves including cardioids, roses, and lemniscates. Develop proficiency in graphing parametric curves with proper orientation and finding solutions within specified intervals. Build a solid foundation with the Pythagorean theorem while gaining a thorough understanding of trigonometric identities and their applications in mathematical problem-solving.

Syllabus

How do you find all SIX of the TRIG FUNCTIONS?
How do you find the value of a trig function (or say it’s undefined)?
How do you prove that the trig equation is true?
How do you find the ANGLE OF ELEVATION? (How tall is the tree?)
How to use SUM-DIFFERENCE TRIG IDENTITIES
How to use EVEN-ODD TRIG IDENTITIES
How do you use trig identities to prove an equation?
How to prove equations using double-angle identities
How to use half angle identities!
How to use product to sum identities in trigonometry
How to use sum to product identities!
converting equations from polar to rectangular (KristaKingMath)
converting equations from rectangular to polar (KristaKingMath)
How do you sketch a polar curve (cardioid)?
How do you sketch a polar curve (rose)?
Graphing polar curves: lemniscates
How to sketch parametric curves and their orientation
How do you find all the solutions inside an interval?
How to express the polar point multiple ways
Pythagorean theorem - What is it?
Trig identities - What are they?

Taught by

Krista King

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