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Trig Ratios for multiples of 30, 45 and 60 degrees




 
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Videos to help GCSE Maths students learn how to find the Trig Ratios for multiples of 30, 45 and 60 degrees.
Trigonometry - Trig. Ratios for 30 and 60 degrees
In this tutorial I show you how we calculate the exact values of sin, cos and tan of 30 and 60 degrees.
Trigonometry - Trig. Ratios for 45 degrees
In this tutorial I show you how we calculate the exact values of sin, cos and tan of 45 degrees.



Trig. Ratios for positive multiples 30, 45 and 60 degrees
In this tutorial I show you how to calculate the exact values of sin, cos and tan for positive multiples of 30 and 60 degrees.
Trig. Ratios for negative multiples 30, 45 and 60 degrees
In this tutorial I show you how to calculate the exact values of sin, cos and tan for negative multiples of 30 and 60 degrees.


 

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