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Evaluate: $2 \sin^2 30^\circ \sec 60^\circ + \tan^2 60^\circ$.
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$2\sin^2 30^\circ \sec 60^\circ + \tan^2 60^\circ$
$= 2 \times (\frac{1}{2})^2 \times 2 + (\sqrt{3})^2$
$= 2 \times \frac{1}{4} \times 2 + 3$
$= 1 + 3$
$= 4$
$= 2 \times (\frac{1}{2})^2 \times 2 + (\sqrt{3})^2$
$= 2 \times \frac{1}{4} \times 2 + 3$
$= 1 + 3$
$= 4$