To find \( \cos \left( \frac{4\pi}{3} \right) \), let's break it down step by step.

1. The angle \( \frac{4\pi}{3} \) is in radians, and it's larger than \( \pi \), which means it lies in the third quadrant of the unit circle.

2. In the third quadrant, the cosine

Discover how to find the cosine of 4π/3 with a step-by-step solution. This problem explores key trigonometric concepts, including the unit circle, reference angles, and quadrant rules. Suitable for students in Grades 10-12.

Math Problem Statement

Solution

Ask a new question for Free

By Image

Math Problem Analysis

Mathematical Concepts

Formulas

Theorems

Suitable Grade Level

Related Recommendation