Some common angles: Trigonometry

The following table shows the conversions for some common angles:

Reciprocal Identities:

Quotient Identities:

Pythagorean Identities:

Co-Function Identities:

Even-Odd Identities:

Sum-Difference Formulas:

Double Angle Formulas:

Sum-to-Product Formulas:

Product-to-Sum Formulas:

Half Angle Formulas:

To know more, please read the below image carefully:


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