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OpenStudy (anonymous):
find the derivative of cos^-1(x/4)
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OpenStudy (anonymous):
chain rule for this one
OpenStudy (adamaero):
arccos(x/4) ?
OpenStudy (anonymous):
-1/4*sqrt1-x^2/16
OpenStudy (anonymous):
do you want the work?
OpenStudy (anonymous):
I was missing the negative...
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OpenStudy (anonymous):
It happens to me all the time, nice job
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