What are the properties and basic identities of trigonometric functions?
Answer 1
Danielle Roberts
Trigonometric functions, including sine, cosine, tangent, cotangent, secant, and cosecant, have fundamental properties and identities. Key properties include periodicity, symmetry, and boundedness. Basic identities include Pythagorean identities (e.g., sin²θ + cos²θ = 1), angle sum and difference identities, double-angle identities, and reciprocal identities.
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