Finding Partial Derivatives of Equations

  • Thread starter alba_ei
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In summary, the purpose of calculating the differential (sen(x+y)) is to determine the rate of change of the sine function with respect to the sum of two variables, x and y. It is calculated using the chain rule of differentiation and can be simplified using trigonometric identities. The differential (sen(x+y)) is related to the derivatives of x and y through the chain rule and has various real-world applications in fields such as physics, engineering, and economics.
  • #1
alba_ei
39
1
Here are a few functions. I can't found the differential

1) sen(x+y) = 2y - arctan y

2) (e^(x-y)) (x-y) = log e
 
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  • #2
These are clearly homework questions, and so we ask that you show work before we can help you. What do you think?
 
  • #3
In fact, in addition to showing us what you have tried, it would be a good idea to tell us what it is you are trying to do! Those aren't functions, they are equations. Do you want to find the partial derivatives of each side or what?
 

1. What is the purpose of calculating the differential (sen(x+y))?

The purpose of calculating the differential (sen(x+y)) is to determine the rate of change of the sine function with respect to the sum of two variables, x and y. This can be useful in solving various mathematical and scientific problems, such as finding the maximum or minimum values of a function or determining the slope of a curve.

2. How is the differential (sen(x+y)) calculated?

The differential (sen(x+y)) is calculated using the chain rule of differentiation, where each variable is treated separately and the derivative of the outer function is multiplied by the derivative of the inner function. In this case, the outer function is the sine function and the inner function is the sum of x and y.

3. Can the differential (sen(x+y)) be simplified?

Yes, the differential (sen(x+y)) can be simplified by using trigonometric identities to rewrite the function in a simpler form. For example, sin(x+y) can be rewritten as sin(x)cos(y) + cos(x)sin(y). This can make it easier to calculate the derivative and manipulate the function for different purposes.

4. What is the relationship between the differential (sen(x+y)) and the derivative of the individual variables?

The differential (sen(x+y)) is related to the derivatives of x and y through the chain rule. This means that the derivative of the sum of two variables is equal to the sum of the derivatives of each individual variable. In other words, the differential (sen(x+y)) is the sum of the derivatives of sin(x) and sin(y).

5. Are there any real-world applications of the differential (sen(x+y))?

Yes, the differential (sen(x+y)) has various real-world applications in fields such as physics, engineering, and economics. For example, it can be used to analyze the motion of objects in oscillating systems, calculate the change in profit over time in a business, or determine the optimal angle for launching a projectile.

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