নিচের কোনটি সঠিক? $\sin(-\theta) = \sin\theta$ $\tan(-\theta) = \tan\theta$ $\sec(-\theta) = \sec\theta$ $\text{cosec}(-\theta) = \text{cosec}\theta$

ID#6890 HSC Higher Math 1st MCQ (Rajshahi 2023)

নিচের কোনটি সঠিক?

ক) $\sin(-\theta) = \sin\theta$

খ) $\tan(-\theta) = \tan\theta$

গ) $\sec(-\theta) = \sec\theta$

ঘ) $\text{cosec}(-\theta) = \text{cosec}\theta$

গ

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