All
Search
Images
Videos
Shorts
Maps
News
More
Shopping
Flights
Travel
Notebook
Report an inappropriate content
Please select one of the options below.
Not Relevant
Offensive
Adult
Child Sexual Abuse
Length
All
Short (less than 5 minutes)
Medium (5-20 minutes)
Long (more than 20 minutes)
Date
All
Past 24 hours
Past week
Past month
Past year
Resolution
All
Lower than 360p
360p or higher
480p or higher
720p or higher
1080p or higher
Source
All
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
Price
All
Free
Paid
Clear filters
SafeSearch:
Moderate
Strict
Moderate (default)
Off
Filter
3:28
Double angle formulas: using cosine double-angle identity
Aug 7, 2013
Khan Academy
Sal Khan
5:36
Evaluating the exact value using sum formula for tangent, tan
2 months ago
MSN
Brian McLogan
10:31
Trig limit using double angle identity
8 months ago
Khan Academy
Double Angle Formulae to Find Exact Trigonometric Values
Jan 17, 2023
mathsathome.com
8:35
Finding trig values using angle addition identities
Apr 2, 2014
Khan Academy
Sal Khan
12:24
Using Angle Sum-Difference Formulas/Identities To Find Exact Value Of tan(-105)
12 views
2 months ago
YouTube
Homework Help
1:37
Prove tan4theta Identity Using Double Angle Formula | Advanced Trigonometric Proof
3 months ago
YouTube
Math By Waqar
41:08
Trigonometry
1.6M views
Jul 18, 2018
YouTube
The Organic Chemistry Tutor
24:51
Verifying Trigonometric Identities
1.6M views
Jan 10, 2021
YouTube
The Organic Chemistry Tutor
8:32
Trigonometric Double Angle Identities | ExamSolutions
35K views
May 15, 2019
YouTube
ExamSolutions
9:14
Half Angle Identities
98K views
May 21, 2010
YouTube
Mathispower4u
5:42
Cofunction Identities Examples & Practice Problems Trigonometry
253.6K views
Nov 15, 2017
YouTube
The Organic Chemistry Tutor
7:43
Pythagorean Identities - Examples & Practice Problems, Trigonometry
539.4K views
Oct 13, 2017
YouTube
The Organic Chemistry Tutor
8:29
Trigonometric Double Angle Identities
42.6K views
Nov 11, 2019
YouTube
Mathispower4u
8:03
How to Use Double Angle Formulas
154.8K views
Feb 11, 2016
YouTube
Mario's Math Tutoring
14:55
Sum and Difference Trigonometric Identities
255.1K views
Dec 8, 2011
YouTube
ProfRobBob
13:19
Simplifying Trigonometric Expressions | Fundamental Trigonometric Identities | Formulas | Problems
134.3K views
Jun 21, 2021
YouTube
Prof D
19:52
02 - Fundamental Trig Identities, Part 2
150.2K views
Sep 20, 2017
YouTube
Math and Science
13:58
Trigonometric Identities with Compound Angle Formula Part 1
72.6K views
Nov 8, 2018
YouTube
Anil Kumar
4:01
Lesson 11 - Double Angle Identities (Trig & PreCalculus)
141.4K views
Aug 19, 2016
YouTube
Math and Science
25:08
Verifying Trigonometric Identities Easily - Strategy Explained (14 Examples)
527.9K views
Feb 3, 2020
YouTube
Mario's Math Tutoring
10:15
Half Angle Formulas & Identities - Evaluating Trigonometric Expressions
499K views
Oct 19, 2017
YouTube
The Organic Chemistry Tutor
58:17
Trigonometry - Double Angle And Half Angle Identities
1.2K views
Oct 13, 2020
YouTube
Steve Crow
15:19
Verifying Trigonometric Identities With Double Angle Formulas
227.2K views
Oct 19, 2017
YouTube
The Organic Chemistry Tutor
10:59
How To Use Reference Angles to Evaluate Trigonometric Functions
710.8K views
Oct 15, 2017
YouTube
The Organic Chemistry Tutor
5:13
Verifying Trigonometric Identities Using Half Angle Formulas
44.6K views
Oct 20, 2017
YouTube
The Organic Chemistry Tutor
21:24
Lesson 1 - Basic Trig Identities Involving Sin, Cos, and Tan
502.9K views
Feb 3, 2016
YouTube
Math and Science
37:54
Pythagorean Identities for Trigonometric Functions (Precalculus - Trigonometry 10)
44.1K views
May 15, 2021
YouTube
Professor Leonard
16:41
Reciprocal Identities - Evaluating Secant and Cosecant Functions
195.1K views
Jun 21, 2017
YouTube
The Organic Chemistry Tutor
6:46
Trigonometric Sum and Difference Identities - (Addition Formulae) | ExamSolutions
137K views
Sep 7, 2011
YouTube
ExamSolutions
See more
More like this
Feedback