Edexcel AS Level Maths: 10.2 Exact Values of Trigonometrical Ratios

Pearson A level maths pure maths year 1 textbook (10.2)
In this video I cover:
1. Finding the exact values of trigonometrical ratios
2. Finding sin, cos and tan of 30 degrees, 45 degrees and 60 degrees
3. Finding sin, cos and tan of angles that are multiples of 30 degrees, 45 degrees and 60 degrees
4. CAST diagram
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