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In this program

Pythagorean and reciprocal identities
Quotient identities
Sum, difference, and double-angle identities
Half-angle formulas
Product-to-sum
Sum-to-product identities (optional)
Solving basic trigonometric equations
Inverse trigonometric functions: domains and ranges

Identities and equations

Pythagorean and reciprocal identities

Trigonometry · STEM / applied

Topic

Pythagorean and reciprocal identities

Practice by unit: Identities and equations

Undergraduate Trigonometry — scope drawn from OpenStax Algebra and Trigonometry 2e (trig chapters) and OpenStax Precalculus 2e trig units.

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