If , then find the value of…

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

If sin⁡θ1+sin⁡θ2+sin⁡θ3=3\sin \theta_1 + \sin \theta_2 + \sin \theta_3 = 3 , then find the value of cos⁡θ1+cos⁡θ2+cos⁡θ3\cos \theta_1 + \cos \theta_2 + \cos \theta_3 .

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