Asked by Taeyeon


3. For what value of k will x+k/x have a relative maximum at x = -2?

A. -4 B. -2 C. 2 D. 4 E. None of these
Answered by Steve
y = x + k/x
y' = 1 - k/x^2

1 - k/x^2 = 0
1 - k/4 = 0
k = 4

(D)
Answered by Timmy
You already answered the question, estupid






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