Trigonometry

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Notes

TOA CAH SOH

Special Triangles

Trigo Identities

Tangent 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

(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