110- The value of $\displaystyle\lim_{x \to \frac{3\pi}{4}} \dfrac{1-\tan^2 x}{\sqrt{1+\sin 2x}}$ is which of the following? (1) $-2\sqrt{2}$ (2) $-\sqrt{2}$ (3) $\sqrt{2}$ (4) $2\sqrt{2}$
\textbf{110-} The value of $\displaystyle\lim_{x \to \frac{3\pi}{4}} \dfrac{1-\tan^2 x}{\sqrt{1+\sin 2x}}$ is which of the following?
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(1) $-2\sqrt{2}$ \hfill (2) $-\sqrt{2}$ \hfill (3) $\sqrt{2}$ \hfill (4) $2\sqrt{2}$
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