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           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 9.8(cos(45−x)+0.65sin(45−x)) >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        9.8 * ( cos ( 45 - x ) + 0.65 * sin ( 45 - x ) ) >0         (1)

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    From inequality(1)：
         -13.695839 < x < -10.554247 或  -7.412654 < x < -4.271061 或  -1.129469 < x < 2.012124 或  5.153717 < x < 8.295309 或  11.436902 < x < 14.578495

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    The final solution set is :
         -13.695839 < x < -10.554247 或  -7.412654 < x < -4.271061 或  -1.129469 < x < 2.012124 或  5.153717 < x < 8.295309 或  11.436902 < x < 14.578495
    *Note: Radian.

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