Using the general power rule to find the derivative of the function $\displaystyle f(x)= {({x}^{2 }-9 })^{\frac{2}{3 } } $ in this case do they mean the chain rule...if not then i'm not sure how to expand the function
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in order to use the chain rule, you will have to invoke the power rule as well. you have: (something)^(a power).
Originally Posted by purplec16 Using the general power rule to find the derivative of the function $\displaystyle f(x)= {({x}^{2 }-9 })^{\frac{2}{3 } } $ in this case do they mean the chain rule...if not then i'm not sure how to expand the function The general power rule states that for any function of the form $\displaystyle [g(x)]^n$, the derivative will be: $\displaystyle n[g'(x)][g(x)^{n-1}]$
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