表达式3: log left parenthesis, "x" ! , right parenthesis left brace, 1 less than or equal to "x" less than or equal to 13 , right brace 有图表。 要进行音频跟踪,按“Alt 键 + T”。logx!1≤x≤13
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表达式4: log left parenthesis, "x" ! times "x" , right parenthesis left brace, 1 less than or equal to "x" less than or equal to 13 , right brace 有图表。 要进行音频跟踪,按“Alt 键 + T”。logx!·x1≤x≤13