MHB *If (dy)/dx= x^2 y^2, then (d^2 y)/(dx^2 )=

  • Thread starter Thread starter karush
  • Start date Start date
Click For Summary
The discussion centers on finding the second derivative of the function given that the first derivative is dy/dx = x^2y^2. The user applies the product rule to derive d^2y/dx^2, resulting in the expression x^42y^3 + 2xy^2. There is some uncertainty about whether this result is correct, despite it appearing satisfactory to the user. The conversation highlights the importance of verifying calculations in calculus. Ultimately, the accuracy of the derived second derivative remains in question.
karush
Gold Member
MHB
Messages
3,240
Reaction score
5
If $\displaystyle\frac{dy}{dx}= x^2y^2$, then $\displaystyle\frac{d^2 y}{dx^2} =$

using the product rule

$\displaystyle x^22y (x^2y^2)+ 2xy^2$

$\displaystyle x^42y^3+2xy^2$

don't think this is the answer??
 
Physics news on Phys.org
Looks good to me. (Nod)
 
Thread 'Problem with calculating projections of curl using rotation of contour'
Hello! I tried to calculate projections of curl using rotation of coordinate system but I encountered with following problem. Given: ##rot_xA=\frac{\partial A_z}{\partial y}-\frac{\partial A_y}{\partial z}=0## ##rot_yA=\frac{\partial A_x}{\partial z}-\frac{\partial A_z}{\partial x}=1## ##rot_zA=\frac{\partial A_y}{\partial x}-\frac{\partial A_x}{\partial y}=0## I rotated ##yz##-plane of this coordinate system by an angle ##45## degrees about ##x##-axis and used rotation matrix to...

Similar threads

  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 5 ·
Replies
5
Views
1K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K