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Cosine Patterns
Things that add up to 360 is the same.
Things that add up to 180 is the same but signs are switched
Sine Patterns
Things that add up to 180 is the same
Things that add up to 360 is same but sign is swapped
For cosine and sine, the things that add up to 90 are the same.
Tangent Patterns:
Things that add up to 360 are same but opposite signs.
Things that add up to 180 are same but opposite signs.Â
Cosecant Patterns:Â
Things that add up to 180 are the same.
Things that add up to 360 are same but opposite signs.
Reciprocal of sine (1/2—> 2) rules same as sine
Secant Patterns:
Things that add up to 360 is the same.
Things that add up to 180 is the same but signs are switched
Reciprocal of cosine (1/2—> 2) rules same as cosine
Cotangent
Things that add up to 360 are same but opposite signs.
Things that add up to 180 are same but opposite signs.Â
Reciprocal of tangent (1/2—> 2) rules same as tangent