If \sin\alpha+\sin\beta=0=\cos\alpha+\cos\beta where0<\beta<\alpha<2\pi, then which one of the following is correct? [NDA I 2018]

NDA Math Trigonometric Ratios of Angles and Equations

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If sin‌α+sin‌β=0=cos‌α+cos‌β where0<β<α<2π, then which one of the following is correct?

[NDA I 2018]

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