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OpenStudy (shamil98):
derivative of x^2cosx product rule?
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hartnn (hartnn):
yep
OpenStudy (shamil98):
f'(x)g(x) + f(x)g'(x) f(x) = x^2 f'(x) = 2x g(x) = cosx g'(x) = -sinx so.. 2x(cosx) + x^2(-sinx) ?
hartnn (hartnn):
correct!
OpenStudy (shamil98):
yay :D
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