Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Easy$\sinh (x+y) \cosh (x-y)$ is equal to
- A$\frac{1}{2}(\sinh 2x + \sinh 2y)$
- B$\sinh 2x + \sinh 2y$
- C$\frac{1}{2}(\sinh 2x - \sinh 2y)$
- D$\sinh 2x - \sinh 2y$
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Similar Questions
If $\sin 10^{\circ} \sin 50^{\circ} \sin 60^{\circ} \sin 70^{\circ} = m$ and $\tan 20^{\circ} \tan 40^{\circ} \tan 60^{\circ} \tan 80^{\circ} = n$,then find the value of $\frac{n}{m}$.
The value of $\log _{10} \tan 1^{\circ} + \log _{10} \tan 2^{\circ} + \dots + \log _{10} \tan 89^{\circ}$ is equal to :-
Difficult
View SolutionIf $\theta+\phi=\alpha$ and $\tan \theta=k \tan \phi$ (where $k>1$),then the value of $\sin (\theta-\phi)$ is
If $x = a \cos^3 \theta$ and $y = b \sin^3 \theta$,then:
Easy
View SolutionIf $\sin A + \sin B = x$ and $\cos A + \cos B = y$,then $\sin(A + B) = $
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