Posted by Subhotosh Khan on October 26, 2002 at 17:26:25:
In Reply to: derivative rules posted by Julie on October 26, 2002 at 16:19:15:
: Need help getting started
: I need to find the exact derivative of (sinx^2)(cosx^3). Do I apply the chain rule or the product rule first??
: Thanks
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In this problem, youldalmost have to apply product rule first.
u = sinx^2 ...is this (sin (x^2) Or [sin(x)]^2
v = cosx^3...is this (cos (x^3) Or [cos(x)]^3
any way,
f = u * v
f' = u'*v + u*v'
While calculating u' and v' you would need to apply chain rule.