Math Problem Statement

Given cos (2πœƒπœƒ)= βˆ’ 78, where 2πœƒπœƒ is an angle in standard position with a terminal arm in quadrant 3, determine the exact value of cos (πœƒπœƒ) and sin (πœƒπœƒ)

Solution

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Math Problem Analysis

Mathematical Concepts

Trigonometry

Formulas

Double-angle identities

Theorems

Trigonometric identities

Suitable Grade Level

High School

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