Posted by **jesse** on Thursday, February 12, 2009 at 8:49pm.

(dy/dx)=X^3/8 - 1/2x^3.

what is sqrt( 1+(dy/dx)^2 ) and that multiplied by (dy/dx)

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**drwls**, Thursday, February 12, 2009 at 10:30pm
Duplicate post.

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