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NeX [460]
3 years ago
13

What value of a makes f(x)=x^2 +a/x have a local minimum at x=2

Geography
1 answer:
Marianna [84]3 years ago
7 0
Critical points occur when the derivative of a function is equal to zero. If a minimum is to occur at x=2, the derivative at that point must be equal to zero. That is;
df(2) = 0
where df is simply the derivative of f(x) (sorry I'm on my phone and it doesn't have the proper notation).
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