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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality ｛1/1.22^2[6×4.5×10^4×250/（2×0.7×h×240^2）]^2+[4.5×10^4/(2×0.7×h×240)]^2}^0.5 ≤160 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1 / 1.22 ^ 2 * ( 6 × 4.5 × 10 ^ 4 × 250 / ( 2 × 0.7 × h × 240 ^ 2 ) ) ^ 2 + ( 4.5 × 10 ^ 4 / ( 2 × 0.7 × h × 240 ) ) ^ 2 ) ^ 0.5 ≤160         (1)
        From the definition field of divisor
         2 × 0.7 × x × 240 ^ 2 ≠ 0        (2 )
        From the definition field of divisor
         2 × 0.7 × x × 240 ≠ 0        (3 )

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    From inequality(1)：
         h ≤ -4.369117 或  h ≥ 4.369117
    From inequality(2)：
         h < 0 或  h ＞ 0
    From inequality(3)：
         h < 0 或  h ＞ 0

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    From inequalities (1) and (2)
         h ≤ -4.369117 或  h ≥ 4.369117    (4)
    From inequalities (3) and (4)
         h ≤ -4.369117 或  h ≥ 4.369117    (5)

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    The final solution set is :
         h ≤ -4.369117 或  h ≥ 4.369117

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