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### Worksheet 3: 3

... Review of Trig Ratios Worksheet 2: 8 introduces the trig ratios of sine, cosine, and ... So sin 1 a=means sin=a The same rule applies to cos 1 a and t an 1 a. If you wish towrite ...

http://maths.mq.edu.au/numeracy/web_mums/module3/Worksheet33/module3.pdf