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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality tanx^2-x^2 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         tan x ^ 2 - x ^ 2 >0         (1)

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    From inequality(1)：
         -7.978666 < x < -7.725252 或  -4.91318 < x < -4.493409 或  -2.028758 < x < 0 或  0 < x < 2.028758 或  4.493409 < x < 4.91318

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    The final solution set is :
         -7.978666 < x < -7.725252 或  -4.91318 < x < -4.493409 或  -2.028758 < x < 0 或  0 < x < 2.028758 或  4.493409 < x < 4.91318
    *Note: Radian.

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