A video explaining the graphs of y = sinx, y = cosx and y = tanx. In the video we learn how to sketch the graphs, their shape and key points along with how to resolve equations using the graphs. This is suitable for the GCSE higher course.

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0:00 Intro
0:10 The graph of y = sinx
2:15 The graph of y = cosx
3:38 The graph of y = tanx
5:53 What makes a graph periodic?
8:28 Using the graph of y = sinx to estimate solutions to an equation
10:53 Using the graph of y = cosx to estimate solutions to an equation
11:44 Solving equations from a sketched graph (sinx)
14:51 Solving equations from a sketched graph (cosx)
18:17 Solving equations from a sketched graph (tanx)

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