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Trigonometryhard
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Given cos⁡(α)=45\cos(\alpha) = \frac{4}{5}cos(α)=54​ and cos⁡(β)=1213\cos(\beta) = \frac{12}{13}cos(β)=1312​ for acute angles α,β\alpha, \betaα,β, find sin⁡(α−β)\sin(\alpha - \beta)sin(α−β).