Math Problem Statement
Для площади S треугольника ABC выполняется условие S=a^2 - (b - c)^2. Найти угол между сторонами b и c.
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Trigonometry
Triangles
Formulas
S = a^2 - (b - c)^2
S = 1/2 * b * c * sin(α)
sin(α) = 2(a^2 - b^2 + 2bc - c^2) / (b * c)
Theorems
Sine Rule
Area of a Triangle
Suitable Grade Level
Grades 10-12
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