If $\sin A+\sin B+\sin C=3$, then $\cos A+\cos B+\cos C$ is equal to

JEE MATHEMATICS MCQ: TRIGONOMETRY RATIOS

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Analyzing +4 | -1

\sin A+\sin B+\sin C=3

, then

\cos A+\cos B+\cos C

is equal to

View answer and explanation

Correct option: D

Option D is correct because if the sum of sines is 3, each sine must be 1, making each angle

\frac{\pi}{2}

, thus each cosine is 0.

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