If , then find the value of…

MATHEMATICS · Subjective · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

If A+B+C=180∘A + B + C = 180^\circ , then find the value of cos⁡Asin⁡Bsin⁡C+cos⁡Bsin⁡Csin⁡A+cos⁡Csin⁡Asin⁡B\frac{\cos A}{\sin B \sin C} + \frac{\cos B}{\sin C \sin A} + \frac{\cos C}{\sin A \sin B} .

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