Math Problem Statement

Prouvez l’identit´e suivante de mani`ere g´eom´etrique: sin(α + β) = sin(α) cos(β) + cos(α) sin(β)

Solution

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Unit Circle
Angle Addition

Formulas

sin(α + β) = sin(α) cos(β) + cos(α) sin(β)
Coordinates on the unit circle: (cos(θ), sin(θ))

Theorems

Angle Addition Identity

Suitable Grade Level

Grades 10-12