Function must have negative value?

9 Apr. 2019
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Aktualisiert 9 Apr. 2019
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Hi, I am confused just clear me if I am wrong, why we need the negative value of the problem after taking second derivative to prove the function convex or concave? or it doesn't matter for solving it further that the value is positive or negative.

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Gefragt:

Maheen Fazal
Maheen Fazal
am 9 Apr. 2019

Kommentiert:

madhan ravi
madhan ravi
am 9 Apr. 2019

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