Daily Archives: June 21, 2019

491 posts

Trigonometric Cofunctions

Trigonometric Cofunctions

I introduce the concept of Cofunctions in Trigonometry and explain why and when they are equal. Check out http://www.ProfRobBob.com, there you will find my lessons organized by class/subject and then by topics within each class. Find free review test, useful notes and more at http://www.mathplane.com

Trigonometry: Triangles

Trigonometry: Triangles

This introduction to trigonometry explores the world of triangles using no equations. The concept of the triangle is introduced and the important types of triangles are defined and described.

Sin Cos Tan – Basic Trigonometry – MathHelp.com

Sin Cos Tan – Basic Trigonometry – MathHelp.com

Like my video? Come to http://www.MathHelp.com and let’s do the complete lesson together! In this lesson, students learn to find the missing side lengths and the missing angle measures in right triangles using sine, cosine, and tangent. Note that a scientific or graphing calculator is required for the problems in this lesson.

Modeling temperature through the day | Graphs of trig functions | Trigonometry | Khan Academy

Modeling temperature through the day | Graphs of trig functions | Trigonometry | Khan Academy

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/trigonometry/trig-function-graphs/modeling-periodic-functions/e/modeling-with-periodic-functions?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Watch the next lesson: https://www.khanacademy.org/math/trigonometry/trig-function-graphs/modeling-periodic-functions/v/modeling-periodic-function-with-shift?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Missed the previous lesson? https://www.khanacademy.org/math/trigonometry/trig-function-graphs/modeling-periodic-functions/v/inverse-trig-with-model?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Trigonometry on Khan Academy: Big, fancy word, right? Don’t be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry (“trig” as it’s sometimes called) has something to do with triangles. You would be…

The Trigonometry of Sailing

The Trigonometry of Sailing

Click here to subscribe ► http://bit.ly/2dPZNN2 We teamed up with US Sailing to examine the trigonometry of sailing through an experiment at the SUSTAIN Laboratory at the University of Miami’s Rosenstiel School of Marine & Atmospheric Science. To learn more about sailing and STEM education, visit reach.ussailing.org Check out the hurricane tank here ► http://bit.ly/2wfGAPh…

Math – Trigonometry – The Sine Rule

Math – Trigonometry – The Sine Rule

Expertmathstutor shows how and when to use the Sine Rule in Trigonometry when trying to find the length of an unknown side or the size of an unknown angle on a non right angled triangle. To buy a set of 7 DVD’s with all the lessons go to www.expertmathstutor.com

Law of sines | Trig identities and examples | Trigonometry | Khan Academy

Law of sines | Trig identities and examples | Trigonometry | Khan Academy

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/trigonometry/less-basic-trigonometry/law-sines-cosines/e/law_of_sines?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Watch the next lesson: https://www.khanacademy.org/math/trigonometry/less-basic-trigonometry/law-sines-cosines/v/law-of-sines-example?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Missed the previous lesson? https://www.khanacademy.org/math/trigonometry/less-basic-trigonometry/law-sines-cosines/v/law-of-cosines-word-problem?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Trigonometry on Khan Academy: Big, fancy word, right? Don’t be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry (“trig” as it’s sometimes called) has something to do with triangles. You would be…

Determining the equation of a trig function | Graphs of trig functions | Trigonometry | Khan Academy

Determining the equation of a trig function | Graphs of trig functions | Trigonometry | Khan Academy

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/trigonometry/trig-function-graphs/trig_graphs_tutorial/e/graphs-of-trigonometric-functions?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Watch the next lesson: https://www.khanacademy.org/math/trigonometry/trig-function-graphs/trig_graphs_tutorial/v/plotting-trig-features?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Missed the previous lesson? https://www.khanacademy.org/math/trigonometry/trig-function-graphs/trig_graphs_tutorial/v/matching-a-trigonometric-function-to-its-graph?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry Trigonometry on Khan Academy: Big, fancy word, right? Don’t be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry (“trig” as it’s sometimes called) has something to do with triangles. You would be…

Matrix equations and systems | Matrices | Precalculus | Khan Academy

Matrix equations and systems | Matrices | Precalculus | Khan Academy

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix-equations/e/writing-systems-of-equations-as-matrix-equations?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Watch the next lesson: https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix-equations/v/solving-matrix-equation?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Missed the previous lesson? https://www.khanacademy.org/math/precalculus/precalc-matrices/inverting_matrices/v/singular-matrices?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn’t mean anything unless you have some knowledge of what…

Classic video on inverting a 3×3 matrix part 2 | Matrices | Precalculus | Khan Academy

Classic video on inverting a 3×3 matrix part 2 | Matrices | Precalculus | Khan Academy

Using Gauss-Jordan elimination to invert a 3×3 matrix. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/precalculus/precalc-matrices/inverting_matrices/e/matrix_inverse_3x3?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Watch the next lesson: https://www.khanacademy.org/math/precalculus/precalc-matrices/inverting_matrices/v/singular-matrices?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Missed the previous lesson? https://www.khanacademy.org/math/precalculus/precalc-matrices/inverting_matrices/v/inverting-matrices-part-2?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn’t mean…

TRIGONOMETRY | त्रिकोणमिति | CLASS 1 | Parimal Sir | ICS COACHING CENTRE

TRIGONOMETRY | त्रिकोणमिति | CLASS 1 | Parimal Sir | ICS COACHING CENTRE

TRIGONOMETRY | त्रिकोणमिति | CLASS 1 | Parimal Sir | ICS COACHING CENTRE Click here to watch : Percentage | प्रतिशत | Class – 6 | Parimal Sir | ICS COACHING CENTRE https://youtu.be/RIts1ayPMPo Percentage | प्रतिशत | Class – 5 | Parimal Sir | ICS COACHING CENTRE https://youtu.be/_KpdhyXOUzs Percentage | प्रतिशत | Class – 4…

Trigonometric Substitution

Trigonometric Substitution

This calculus video tutorial provides a basic introduction into trigonometric substitution. It explains when to substitute x with sin, cos, or sec. It also explains how to perform a change of variables using u-substitution integration techniques and how to use right triangle trigonometry with sohcahtoa to convert back from angles in the form of theta…