Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Mediumयदि $\sin x \cosh y = \cos \theta$ और $\cos x \sinh y = \sin \theta$ है,तो $\sin^2 x + \cosh^2 y =$
- A$1$
- B$0$
- C$2$
- D$\cos 2 \theta$
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