Original post by Hasufel
if you have a (implicit) function, or equation, to be precise, in terms of x and y,
what might it mean if the first derivative is undefined at a certain x,y point, but the 2nd derivative is defined at the same point?
change in concavity?
what might it mean if the first derivative is undefined at a certain x,y point, but the 2nd derivative is defined at the same point?
change in concavity?
FIRST:sideways stationary point (vertical tangent)
SECOND: "local maximum" of "local minimum"
nothing special about the x and y, just a matter of reference
Original post by Hasufel
i knew it! - thanks!
all good
I was also testing whether you knew it.
Quick Reply
Related discussions
- Implicit differentiation question
- Find the tangent to curve y=2cot(3x)-3cosec(4x) when x =pi/6
- Series function not differentiable at a point
- Images of functions
- Convergence of Fourier series
- Are engineers glorified graphic designers?
- When transforming a graph, does it matter which order you list the transformations?
- Imperial Physics low student satisfaction
- Math help - finding the stationary points using second derivative test
- (SQA) Will I fail the entire of National 4 if I fail a 9-mark test in the 2nd unit?
- Failing one module
- Simple differentiation question
- Oxbridge Maths - Interview Questions
- Mathematics - Stuck on a question
- Implicit and parametric curves
- I'm losing the magic...
- DWP work coach EO June/July’23 interviews
- A Level Maths Exam Question
- Will I fail the entire of National 4 if I fail on a 9 mark total test?
- Undefined usernames
Latest
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
