Pre-Calculus Basics – Exact Values with Inverse Trig Functions (Part 2) | Two Problem Examples

This video continues our Pre-Calculus series on inverse trigonometric functions by solving two more challenging examples involving secant and cosine with inverse tangent and inverse sine inputs.

Each problem is broken down step-by-step using right triangles and the Pythagorean Theorem to find the missing side and calculate the exact value.

🧮 Problems Covered:
✔ Evaluate sec(arctan(–3/5))
✔ Evaluate cos(arcsin(5/13))

We’ll analyze the triangle’s quadrant to handle negative values correctly and review how to apply trigonometric identities in context.

This video is perfect for:
✔ Students learning Pre-Calculus
✔ Algebra 2 students previewing trig topics
✔ SAT, ACT, and standardized test prep

📘 Pre-Calculus Series – Inverse Trigonometric Functions
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Видео Pre-Calculus Basics – Exact Values with Inverse Trig Functions (Part 2) | Two Problem Examples канала The Calculus Hero