Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesFundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles
Easy$\sin (\pi + \theta )\sin (\pi - \theta )\csc^2 \theta = $
- A$1$
- B$-1$
- C$\sin \theta $
- D$-\sin \theta $
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