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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality tanx >－π/9 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         tan x > - π / 9         (1)

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    From inequality(1)：
         x < -7.853982 或  -6.283185 < x < -4.712389 或  -3.141593 < x < -1.570796 或  0 < x < 1.570796 或  3.141593 < x < 4.712389 或  x ＞ 6.283185

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    The final solution set is :
         x < -7.853982 或  -6.283185 < x < -4.712389 或  -3.141593 < x < -1.570796 或  0 < x < 1.570796 或  3.141593 < x < 4.712389 或  x ＞ 6.283185
    *Note: Radian.

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