Trigonometry
Trigonometry help for high school + college students taking PreCalculus. This board contains basic overviews, cheat sheets, notes, lessons, reviews, study…
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How to Verify Trig Identities? (15 Powerful Examples!)
Proving Trig Identities - TERRIFIC lesson on proving trig identities. With 15 examples, you'll learn how to prove identities, by appropriate choosing a side, and following a checklist of strategies for verifying. As a bonus, discover how easy it is factor, obtain common denominators, and even apply the conjugate. Everything you need to score well in your next quiz. #calcworkshop
How to Solve Double Angle Identities? (16 Amazing Examples!)
Double Angle Identities - POWERFUL video lesson on how prove and evaluate double angle identities. With 16 examples, you'll have everything you need to score well in your next test. Terrific for new teachers as a review. Discover how easy it is learn the double angle formulas, evaluate trig functions, and prove identities using these powerful double angle identities. #calcworkshop
How to Solve Half-Angle Identities? (7+ Awesome Examples!)
Half Angle Identities - INSIGHTFUL video lesson on half-angle identities. With 8 examples, you'll have everything you need to score well in your next quiz or test. Terrific for new teachers as a review. Perfect for high school algebra courses. Learn the half angle formulas and their alternative forms, so you can easily evaluate complex trig functions, and verify trig identities. #calcworkshop
How to Solve Inverse Trig Functions - (19 Awesome Examples!)
Inverse Trig Functions - EXCELLENT video lesson with 19 Example Problems. Learn how to graph and evaluate inverse trig functions. Terrific for new algebra teachers. Perfect for high school and middle school math courses. As a bonus, learn how use the unit circle, reference triangles, and trigonometric identities to solve inverse trig functions. Watch it today! #calcworkshop
What is the Law of Sines? (Simply Explained with 4 Examples!)
Law of Sines PDF (Free Printable) which includes the formulas, detailed steps to solve oblique triangles, and 2 practice problems. Great handout for students and teachers in PreCalculus, Trig, or even Algebra 2. Grab your FREE Cheat Sheet Today! #calcworkshop
Find Velocity Vectors (Airspeed & Groundspeed) - 3 Popular Examples!
Velocity Vectors - POWERFUL video lesson on velocity, speed, and vectors. With 3 examples, you'll have everything you need to score well in your next test. Terrific for new teachers as a review. Learn how to find ground speed, airspeed, heading, and direction using vectors and direction angles. #calcworkshop
Converting Polar to Rectangular Coordinates (19+ Examples!)
Polar Coordinates - POWERFUL video lesson on converting to and from rectangular (Cartesian) coordinates to polar coordinates. With 15 step-by-step examples, you'll have everything you need for your trig class. Excellent topic for high school and middle school math courses. Learn how to graph a polar coordinate and use coterminal angles to give multiple representations for each polar coordinate, and convert rectangular coordinates and equations to polar and vice-versa. #calcworkshop
How to Graph Polar Equations? (Explained w/ 15 Examples!)
Graphing Polar Equations - INSIGHTFUL lesson on how to graph polar equations by using transformations and a table of values. With 15 step-by-step examples, you'll have everything you need for your math class. New to teaching this topic? Then this lesson is for you. Learn how to unwrap the unit circle and graph polar equations on the coordinate plane by using easy to follow transformations or a table of values. #calcworkshop
Complex Numbers in Polar Form (with 9 Powerful Examples!)
Complex Numbers in Polar Form - GREAT video lesson on converting and transforming from standard form into polar form. With 9 examples, you'll have everything you need to score well in your next quiz or test. Excellent review for new trig teachers. Perfect for students in high school or middle school math courses. Find out about the complex plane, some new terminology (modulus, argument). Finally understand how easy it is to multiply and divide in polar form. #calcworkshop
De Moivre's Theorem and the Complex Roots Theorem (8 Examples!)
De Moivre’s Theorem - EXCELLENT video lesson on finding roots and solutions to equations dealing with complex numbers. With 8 example problems you'll have everything you need to score well in your next test. Excellent review if you're new to teaching this topic too. Perfect for students in high school or middle school math courses. Find out why you need to be in polar form first to find powers. Even discover how to deal with negative numbers. #calcworkshop
What is PreCalculus? A Quick Intro to What's Covered
Precalculus - POWERFUL video overview of all the topics you'd expect to see in a high school precalculus classroom. This online course covers both trigonometry and math analysis with such units as the unit circle, trig identities, functions, and series. Check it out today! #calcworkshop
Interval Notation (Made Easy w/ 14 Step-by-Step Examples!)
Interval Notation - FREE Worksheets! Great practice exercises in Precalculus or even Algebra 2. Use these notes as an activity to increase your understanding of Graphing Inequalities and Transforming Set Builder Notation to Interval Notation. Grab your FREE worksheets today! #calcworkshop
Converting, Adding, and Subtracting with Degrees Minutes Seconds
Degrees Minutes Seconds (DMS) in Trig is used for navigation and surveying where you are dealing with topography, latitudes, and longitudes. Learn how to convert angles from DMS to decimal degrees, add and subtract in DMS, and much more. Check out this precalculus video lesson today! #calcworkshop
Angles of Elevation and Depression - (5 Powerful Examples!)
Angles of Elevation and Depression with 5 Classic Examples. The video lesson includes: The distance from a radar station to a plane, the distance from a buoy to a lighthouse, the distance between two boats out at sea, and more. Powerful stuff for those in trig or precalculus! #calcworkshop
How to Find Reference Angles - (17 Sure Fire Examples!)
Reference Angles for trigonometry. These angles are a positive, acute angle determined by the x-axis and the terminal side of a given angle. The videos walks through reciprocal Trig functions as well. Powerful stuff for those taking precalculus! Check it out today. #calcworkshop