Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -tan(2x-3/4π) ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -tan ( 2 * x - 3 / 4 * π ) ≥0         (1)

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    From inequality(1)：
         x ≤ -3.534292 或  -2.748894 ≤ x ≤ -1.963495 或  -1.178097 ≤ x ≤ -0.392699 或  0.392699 ≤ x ≤ 1.178097 或  1.963495 ≤ x ≤ 2.748894 或  x ≥ 3.534292

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    The final solution set is :
         x ≤ -3.534292 或  -2.748894 ≤ x ≤ -1.963495 或  -1.178097 ≤ x ≤ -0.392699 或  0.392699 ≤ x ≤ 1.178097 或  1.963495 ≤ x ≤ 2.748894 或  x ≥ 3.534292
    *Note: Radian.

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