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$$\left(\frac{\sin 45^\circ + \cos 45^\circ + \tan 45^\circ}{\sin 45^\circ - \cos 45^\circ - \tan 45^\circ}\right)^2 =$$
$$\frac{1}{2}\left(2 + \sqrt{2}\right)$$
$$\frac{1}{2}\left(2 - \sqrt{2}\right)$$
$$3 + 2\sqrt{2}$$
$$6 + 4\sqrt{2}$$
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