AP Precalculus Quiz
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TRIGONOMETRIC AND POLAR FUNCTIONS
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A 20-ft ladder leans against a wall, reaching 16 ft high. Using a right triangle model, the angle of elevation θ\theta at the ground satisfies sin⁡(θ)=1620\sin(\theta)=\frac{16}{20}. Assume 0∘<θ<90∘0^\circ<\theta<90^\circ. Find θ\theta in degrees using an inverse trigonometric function.
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