Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesFundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles
Easy$\cot (45^\circ + \theta ) \cot (45^\circ - \theta ) = $
- A$-1$
- B$0$
- C$1$
- D$\infty$
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