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anonymous
 4 years ago
I guess I'm not understanding the concept for part of this, what should I know?
I'm posting my answers below, I would like to know what I did incorrectly in the middle part.
Yes I realize this is about identifying concavity and how to do that, but I want to know how to do the notation as shown, what that means I need to do mathematically, in steps.
I'll be back tomorrow to check on this :)
anonymous
 4 years ago
I guess I'm not understanding the concept for part of this, what should I know? I'm posting my answers below, I would like to know what I did incorrectly in the middle part. Yes I realize this is about identifying concavity and how to do that, but I want to know how to do the notation as shown, what that means I need to do mathematically, in steps. I'll be back tomorrow to check on this :)

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0So to find the second derivative of a parametric, I need to do what in what order, basically. The textbook is kind of a fail on this explaining this part and it's not covered in the lecture.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1342046174612:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1342046259886:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0So your second derivative isn't right.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Perfect, I understand much better now @mahmit2012 :D Now I just need to remember those steps for future problems!
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