计算曲线[tex=6.643x2.429]9Z3Ho8RO1Zz72horG09BlXzTufl/4MTtD7CDV4LFH1A52RcgUyd3DdVAMyi9UsQF[/tex]，[tex=6.5x2.429]t1rTE/vYkHE6ufDOrXpjQUxIvwsQ8WJ/HFXXHeAGnmu/d3eT3ROLuYskaMnDUkEv[/tex]自原点到该曲线上具有铅直切线最近点的弧长 .
计算曲线[tex=6.643x2.429]9Z3Ho8RO1Zz72horG09BlXzTufl/4MTtD7CDV4LFH1A52RcgUyd3DdVAMyi9UsQF[/tex]，[tex=6.5x2.429]t1rTE/vYkHE6ufDOrXpjQUxIvwsQ8WJ/HFXXHeAGnmu/d3eT3ROLuYskaMnDUkEv[/tex]自原点到该曲线上具有铅直切线最近点的弧长 .
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