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Integrals of Trigonometric Functions
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Derivatives of Trigonometric Functions
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Conversion of Trigonometric Functions
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Law of cosines
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Law of sines
Additional Formulas
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Basic Relationships
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Pythagoras
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Right Triangle
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Shifts and Periodicity
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Symmetry
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Law of cosines
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Law of sines
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Law of tangents
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Product to Sum
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Sum to Product
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Math Formulas
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Trigonometry
> Basic Relationships
Basic Relationships
Pythagorean trigonometric identity:
sin
2
θ
+ cos
2
θ
= 1
Ratio identity:
tan
θ =
sin
θ
/ cos
θ
, where
θ
is the corresponding angle.
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