tan2 60° - 2tan2 45° - cot2 30° + 2sin2 30°
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Explanation:
root 3 square - 2 × 1 square - root 3 square + 2(1/2) square
= 3 - 2 - 3 + 2/4
= 2/4 - 2
= take lcm
= 2 - 2×4/4
= 6/4
= 2/3
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