Anthonyk2013
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Max and min values of a curve
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Well you did the first and second derivative correctly (but, as ksdhart mentioned in the other post, pay attention to your variables. The derivative should be with respect to t not wrt x).Wondering if I'm on the right track.
However, as you had in your other problem, it is where the first derivative is zero for a possible maximum or minimum and you need to check the second derivative to see if it is a max or min (or possibly do more checking)
Anthonyk2013
Junior Member
- Joined
- Sep 15, 2013
- Messages
- 132
Well you did the first and second derivative correctly (but, as ksdhart mentioned in the other post, pay attention to your variables. The derivative should be with respect to t not wrt x).
However, as you had in your other problem, it is where the first derivative is zero for a possible maximum or minimum and you need to check the second derivative to see if it is a max or min (or possibly do more checking)
ok thanks. The answer given in the book is a positive answer 2/3. Have I gone wrong some where along the line?
ok thanks. The answer given in the book is a positive answer 2/3. Have I gone wrong some where along the line?
Where is the first derivative equal to zero?