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Special Triangles
Trigo IdentitiesTangent and Cotangent Identities
Reciprocal Identities
Pythagorean Identities
Even/Odd Formulas
Periodic Formulas
Double Angle Formulas
Degrees to Radians Formulas
If x is an angle in degrees and t is an angle in radians then
Half Angle Formulas
Sum and Difference Formulas
Product to Sum Formulas
Sum to Product Formulas
Cofunction Formulas
Law of Sines, Cosines and Tangents
R Formula
Expressing (a , b are constants) in the form or where R 0 and .
Example
Express with R formula.R = 5 (R 0)
Proving Trigo Identities - Many questions to practise!
Practice Questions
The Lord is my shepherd, I shall not want.