Chain rule for several variables: Implicit diff.

In summary, we are tasked to find dz/dx given the implicit equation (z^2)x + 3xy^2 + e^((y^2)z) = 4. Using the partial derivatives Fx= z^2 + 3y^2 and Fz=2zx+(y^2)e^((y^2)z), we can solve for dz/dx= (z^2+3y^2)/[2zx+(y^2)e^((y^2)z)].
  • #1
soe236
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0

Homework Statement


Z is defined implicitly as a function of x,y by equation (z^2)x + 3xy^2 + e^((y^2)z) = 4. Find dz/dx

Homework Equations


dz/dx = -Fx/Fz

The Attempt at a Solution


Fx= z^2 + 3y^2
Fz=2zx+(y^2)e^((y^2)z)
dz/dx= (z^2+3y^2)/[2zx+(y^2)e^((y^2)z)]

I'm not sure if I used the partial derivatives correctly, and a little unsure about the procedure as well. Someone please check that and tell me if it's correct. Thankyou
 
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  • #2
soe236 said:
(z^2)x + 3xy^2 + e^((y^2)z) = 4. Find dz/dx

Fx= z^2 + 3y^2
Fz=2zx+(y^2)e^((y^2)z)
dz/dx= (z^2+3y^2)/[2zx+(y^2)e^((y^2)z)]

Hi soe236!

Looks good to me. :biggrin:
 
  • #3
Thank you!
 

Related to Chain rule for several variables: Implicit diff.

1. What is the chain rule for several variables in implicit differentiation?

The chain rule for several variables in implicit differentiation is a mathematical tool used to find the derivative of a function that is not explicitly expressed in terms of its independent variables. It allows us to find the rate of change of a dependent variable with respect to one or more independent variables.

2. How is the chain rule applied in implicit differentiation?

The chain rule for several variables in implicit differentiation is applied by first identifying the dependent and independent variables in the equation. Then, we differentiate each variable separately, with the other variables treated as constants. Finally, we multiply the derivatives and simplify the expression to get the final derivative.

3. Why is the chain rule important in implicit differentiation?

The chain rule is important in implicit differentiation because it allows us to find the derivative of a function that is not explicitly expressed in terms of its independent variables. This is useful in many real-world applications, such as finding the rate of change in multivariable systems.

4. Are there any limitations to using the chain rule in implicit differentiation?

Yes, there are some limitations to using the chain rule in implicit differentiation. It can only be applied to functions that are differentiable, and it may not work for more complex functions with multiple variables. In these cases, alternative methods such as partial differentiation may be necessary.

5. Can the chain rule be extended to higher dimensions in implicit differentiation?

Yes, the chain rule can be extended to higher dimensions in implicit differentiation. In fact, it can be applied to functions with any number of independent variables, as long as the function is differentiable. This allows for the calculation of partial derivatives and higher-order derivatives in multidimensional systems.

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