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ધારો કે $\frac{\pi}{2} < x < \pi$ એવું છે કે જેથી $\cot x = \frac{-5}{\sqrt{11}}$. તો $\left(\sin \frac{11x}{2}\right)(\sin 6x - \cos 6x) + \left(\cos \frac{11x}{2}\right)(\sin 6x + \cos 6x)$ ની કિંમત શોધો.

જો $2 \sinh^{-1}\left(\frac{a}{\sqrt{1-a^2}}\right)=\log \left(\frac{1+x}{1-x}\right)$ હોય,તો $x$ ની કિંમત શોધો.

જો $\sin \theta \cosh \alpha = \tan x$ અને $\cos \theta \sinh \alpha = \sec x$ હોય,તો $\cos 2 \theta \cosh 2 \alpha$ ની કિંમત શોધો.

આપેલ છે કે $\sin \beta = \frac{4}{5}$ અને $0 < \beta < \pi$. તો $\frac{\sqrt{3} \sin(\alpha + \beta) - \frac{2}{\cos(\pi/6)} \cos(\alpha + \beta)}{\sin \alpha}$ નું મૂલ્ય શું છે?

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જો $\sec(x) = \cosh(\theta)$ હોય,તો $\tanh^2\left(\frac{\theta}{2}\right)$ શોધો.

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