Posted by **Mariam** on Thursday, November 4, 2010 at 8:24pm.

Let f be he real-valued function defined by f(x)=sin^3x+sin^3|x|

(a) find f'(x) for x>0

(b) find f'(x) for x<0

(c) determine whether f(x) is continuous and x=0

(d) determine whether the derivative of f(x) exists at x=0

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