Ugly summation

Geometry Level 3

Evaluate [4sin(1112π)+4cos(2312π)+22tan(1912π)]2\left[4\sin \left(\frac{11}{12}\pi\right) + 4\cos \left(\frac{23}{12}\pi\right) + 2\sqrt{2}\tan\left(\frac{19}{12}\pi\right)\right]^2.

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