## Course: TrigonometryDnatube

#### Lec 1 - Basic Trigonometry

Basic Trigonometry Introduction to trigonometry

#### Lec 2 - Basic Trigonometry II

Basic Trigonometry II A few more examples using SOH CAH TOA

#### Lec 4 - Using Trig Functions

Using Trig Functions Using Trigonometric functions to solve the sides of a right triangle

#### Using Trigonometric functions to solve t ...

Using Trigonometric functions to solve the Using Trig Functions is shown in this math video lecture.

#### Lec 5 - Using Trig Functions Part II

Using Trig Functions Part II A couple of more examples of using Trig functions to solve the sides of a triangle.

#### Lec 6 - The unit circle definition of tr ...

The unit circle definition of trigonometric function Using the unit circle to extend the SOH CAH TOA definition of the basic trigonometric functions.

#### Lec 7 - Unit Circle Definition of Trig F ...

Unit Circle Definition of Trig Functions Using the unit circle to define the sine, cosine, and tangent functions

#### Lec 8 - Graph of the sine function

Graph of the sine function Using the unit circle definition of the sine function to make a graph of it.

#### Lec 9 - Graphs of trig functions

Graphs of trig functions Exploring the graphs of trig functions

#### Lec 10 - Graphing trig functions

Graphing trig functions Analyzing the amplitude and periods of the sine and cosine functions.

#### Lec 11 - More trig graphs

More trig graphs Determining the equations of trig functions by inspecting their graphs.

#### Lec 12 - Determining the equation of a t ...

Determining the equation of a trigonometric function Determining the amplitude and period of sine and cosine functions.

#### Lec 13 - Trigonometric Identities

Trigonometric Identities Introduction to trigonometric identities

#### Lec 14 - Proof: sin(a+b) = (cos a)(sin ...

Proof: sin(a+b) = (cos a)(sin b) + (sin a)(cos b) Proof of the trig identity sin(a+b) = (cos a)(sin b) + (sin a)(cos b)

#### Lec 15 - Proof: cos(a+b) = (cos a)(cos b ...

Proof: cos(a+b) = (cos a)(cos b)-(sin a)(sin b) Proof of the trig identity: cos(a+b) = (cos a)(cos b)-(sin a)(sin b)

#### Lec 16 - Trig identities part 2 (parr 4 ...

Trig identities part 2 (parr 4 if you watch the proofs) More playing around with trig identities

#### Lec 17 - Trig identies part 3 (part 5 if ...

Trig identies part 3 (part 5 if you watch the proofs) Continuation of the playing around with trig identities

#### Lec 18 - Trigonometry word problems (part 1)

Trigonometry word problems (part 1) The first part of a problem when the captain of a ship goes off track.

#### Lec 19 - Trigonometry word problems (part 2)

Trigonometry word problems (part 2) The second part of the problem of the off-track ship captain

#### Lec 20 - Law of cosines

Law of cosines Introduction to the law of cosines to solve for a side of a triangle when 2 sides and an angle are known.

#### Lec 21 - Navigation Word Problem

Navigation Word Problem Trigonometry problem involving two ships colliding.

#### Lec 22 - Proof: Law of Sines

Proof: Law of Sines A simple proof of the Law of Sines

#### Lec 23 - Ferris Wheel Trig Problem

Ferris Wheel Trig Problem Trigonometry problems dealing with the height of two people on a ferris wheen

#### Lec 24 - Ferris Wheel Trig Problem (part 2)

Ferris Wheel Trig Problem (part 2) Part 2 of the ferris wheel problems. Graph of h(t)=9-8cos(18t)

#### Lec 25 - Fun Trig Problem

Fun Trig Problem A trig problem involving the quadratic equation.

#### Lec 26 - Lec 24 - Polar Coordinates 1

Polar Coordinates 1 Introduction to polar coordinates

#### Lec 27 - Polar Coordinates 2

Polar Coordinates 2 Conversion from Cartesian to Polar Coordinates

#### Lec 28 - Polar Coordinates 3

Polar Coordinates 3 Converting between Cartesian and Polar functions

#### Lec 29 - Inverse Trig Functions: Arcsin

Inverse Trig Functions: Arcsin Introduction to the inverse trig function arcsin

#### Lec 30 - Inverse Trig Functions: Arctan

Inverse Trig Functions: Arctan Understanding the arctan or inverse tangent function.

#### Lec 31 - Inverse Trig Functions: Arccos

Inverse Trig Functions: Arccos Understanding the inverse cosine or arccos function

#### Lec 32 - Trigonometry Identity Review/Fun

Trigonometry Identity Review/Fun Revisiting the proofs of some trigonometry identities.

#### Lec 33 - Tau versus Pi

Tau versus Pi Why Tau might be a better number to look at than Pi

#### Lec 34 - IIT JEE Trigonometry Problem 1

This is a lecture of Khan Academy. 2010 IIT JEE Paper I #29 Trigonometry problem

#### Lec 35 - IIT JEE Trigonometric Maximum

IIT JEE Trigonometric Maximum IIT JEE Trigonometric Maximum 2010 IIT JEE Paper 1 Problem 48 Trigonometric Maximum

#### Lec 36 - IIT JEE Trigonometric Constraints

This is a lecture of Khan Academy. 2010 IIT JEE Paper 1 Problem 47 Trigonometric Constraints

#### Lec 37 - Trigonometric System Example

This lecture is provided by Khan Academy. 2010 IIT JEE Paper 1 Problem 55 Trigonometric System

#### Lec 38 - 2003 AIME II Problem 11

2003 AIME II Problem 11 A little trigonometry to figure out the area of a triangle is shown in this video.

#### Lec 39 - 2003 AIME II Problem 14

2003 AIME II Problem 14 Trigonometry and geometry to find the area of an equilateral (but not regular) hexagon

#### Trigonometry

Source of these courses is khan
This is Trigonometry course from Khan University. These lectures show videos on trigonometry. Watch the "Geometry" playlist first if you have trouble understanding the topics covered here.
khan  Website: http://www.dnatube.com/school/khan

#### khan

Videos are obtained from khan
COURSE NAME: Trigonometry