Trigonometry | Maths Dot
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0:00 About the angles of a triangle
0:46 Similar triangles
1:54 Trigonometric ratios
4:32 Calculating the ratios of 60° and 30°
6:54 An important trigonometric identity
8:39 When the triangle becomes a circle
12:10 Angles in radians
15:22 Graphs of the sine and cosine functions
17:54 Tangent function
19:51 Secondary functions
22:07 The end
Music used:
Airport Lounge - Disco Ultralounge by Kevin MacLeod is licensed under the Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/...
Source: http://incompetech.com/music/royalty-...
Artist: http://incompetech.com/