Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesTrigonometrical ratios of sum and difference of two and three angles
Easy$\sin (x+y) \sec x \sec y=$
- A$\cos x \cos y$
- B$\tan x-\tan y$
- C$\cos x+\cos y$
- D$\tan x+\tan y$
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