Questions

Question 22: Trigonometric equations.

QUESTION 22. TRIGONOMETRIC EQUATIONS. θ = s/60 × 2π 3sin^3(θ)/4 = -3/32 6cos^2(θ)/12 = 3/8 a. Solve for θ and s. 3sin^3(θ) = -3/8 sin^3(θ) = -1/8 sin(θ) = ³√(-1/8) = -1/2 sin^-1(-1/2) =  θ – 2π = -π/6 θ = 2π + sin^-1(-1/2) = 11π/6 6cos^2(θ) = 9/2 cos^2(θ) = 3/4 cos(θ) = √(3/4) = √3/2 cos^-1(√3/2) = 2π […]

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