Solve Trigonometric Equation with sin(60°) and cos²(30°)

Math Problem Statement

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Trigonometry
Trigonometric Identities
Trigonometric Functions

sin(θ), cos(θ), tan(θ), sec(θ), cosec(θ)
Pythagorean identities: sin²θ + cos²θ = 1
tan²(θ) = sec²(θ) - 1
cosec(θ) = 1 / sin(θ)

Trigonometric functions and ratios in specific angles
Basic identities: tan(θ) = sin(θ) / cos(θ), sec(θ) = 1 / cos(θ)

Grades 11-12

Evaluate Trigonometric Expression: sin(-35π/6) cos(13π) tan(59π/6)

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Solve Trigonometric Equation: cot(θ + ϕ), 9 + 15cosϕ = 0, Average of cosθ and sinθ