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Question Number 79455 by Vishal Sharma last updated on 25/Jan/20

$$\mathrm{If}\sin {\theta }_1+\sin {\theta }_2+\sin {\theta }_3=3,\mathrm{then}$$$$\cos {\theta }_1+\cos {\theta }_2+\cos {\theta }_3=$$

Answered by $@ty@m123 last updated on 25/Jan/20

$$0$$

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