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October 2, 2014

October 2, 2014

Posted by **kim** on Monday, November 28, 2011 at 11:38pm.

- calculus -
**Steve**, Tuesday, November 29, 2011 at 12:29amw = 4e^√s

d/ds e^u = e^u du/ds

Here we have u = s^(1/2)

so, du/ds = 1/2 s^(-1/2) = 1/(2√s)

so, dw/ds = 4 e^√s * 1/(2√s)

= 2/√s e^√s

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