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Mathematics 20 Online
OpenStudy (anonymous):

Compute the arc length exactly. Y=1/3x^3/2-x^1/2,4<=x<=81. Please help.

OpenStudy (anonymous):

Is that\[y=\frac{ 1 }{ 3 }x ^{\frac{ 3 }{ 2 }}-x ^{\frac{ 1 }{2 }}\]

OpenStudy (anonymous):

This is what I get (see attached file)

OpenStudy (anonymous):

Yeah that looks perfect to me.

OpenStudy (anonymous):

Thank you

OpenStudy (anonymous):

u r welcome.

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