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How to find the range of the cosine
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How to find the range of the cosine Practice Test
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Q1
Simplify (cosΘ – sinΘ)2
1
cos2Θ – 1
2
1 + cos2Θ
3
1 + sin2Θ
4
sin2Θ – 1
5
1 – sin2Θ
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