Is This Calculation of ∂z/∂x Correct for the Given Function?

Click For Summary

Homework Help Overview

The discussion revolves around calculating the partial derivative ∂z/∂x for a given function involving variables x, y, and z. The original poster presents their attempt at a solution and seeks validation of their calculation.

Discussion Character

  • Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants discuss the correctness of the original poster's expression for ∂z/∂x, with suggestions to check for missing terms and to show work for clarity. There are attempts to rearrange the equation for further analysis.

Discussion Status

Some participants provide feedback on the calculations, indicating areas that may need correction or further elaboration. The conversation is ongoing, with no clear consensus reached yet on the final expression for ∂z/∂x.

Contextual Notes

There is mention of algebraic manipulation and the need for careful checking of terms, particularly regarding the presence of sine terms in the calculations. The original poster expresses willingness to share more detailed work if needed.

njo
Messages
20
Reaction score
0

Homework Statement


∂z/∂x of ycos(xz)+(4xy)-2z^2x^3=5x[/B]

Homework Equations


n/a

The Attempt at a Solution


∂z/∂x=(5+yz-4y+6z^2x^2)/(-yxsin(xz)-4zx^3)[/B]

Is this correct? Just trying to make sure that's the correct answer. I appreciate the help. I can post my work if need be. Thanks
 
Physics news on Phys.org
Close, but check your work. There is at least a sine term missing in the numerator. Better yet, show your work.
 
-y*sin(xz)*(z+x(∂z/∂x))+4y-4zx^3(∂z/∂x)-6z^2x^2 = 5

This is what I have before rearranging and factoring for ∂z/∂x
 
njo said:
-y*sin(xz)*(z+x(∂z/∂x))+4y-4zx^3(∂z/∂x)-6z^2x^2 = 5

This is what I have before rearranging and factoring for ∂z/∂x

That looks good. If you carefully do the algebra solving for ##\frac{\partial z}{\partial x}## you should be OK.
 
(5+yzsin(xz)-4y+6z^2x^2)/(-yxsin(xz)-4zx^3) = ∂z/∂x

Pretty sure this is right. Just messed up on my algebra. Thank you so much. The internet is great.
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
1K
  • · Replies 15 ·
Replies
15
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
Replies
9
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
6
Views
2K
  • · Replies 13 ·
Replies
13
Views
4K