Asked by Anonymous

find the derivative of the function at the given number

F(x)= 1/ √x at 4
Answered by Reiny
or
f(x) = x^(-1/2)
f ' (x) = (-1/2)x^(-3/2)
= (-1/2) /√(x^3)

sub in x = 4
Answered by Anonymous
thank you
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