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The original function and its derivative
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tan-1(x)/arctan(u)
u’/1 + u2
sin-1(x)/arcsin(u)
1/sqroot(1 - u²)
au
au(lna)(u’)
loga(u)
u’/uln(a)
Critical Numbers
Input values where f’=0 or f’ is undefined. The numbers have to be within the domain.
Finding critical numbers
Find the derivative of the function
Factor the derivative of the function
Set the factored version equal to zero (0)
Split the factored in two if needed then set both sides equal to zero (0)
The x value found after setting the function equal to zero, and are within the domain are the critical numbers