Find the solution of the equation using a given f(x)

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In summary, the equation refers to a mathematical expression that equates two values or sets of values and f(x) is a function that represents the output or dependent variable in relation to the input or independent variable x. To find the solution of an equation using a given f(x), you need to substitute the given value of x in the function and solve for the output or value of f(x). The steps involved in this process are to substitute the given value of x in the function f(x), simplify the resulting expression, solve for the output or value of f(x), and check the solution by substituting it back in the original equation. The solution of an equation using a given f(x) can be written in different forms depending on the nature
  • #1
Susanne217
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Homework Statement



I have the heat equation [tex]\frac{\partial u}{\partial t} = k \frac{\partial^2 u}{\partial x^2}[/tex]

where u(x,0) = f(x) and [tex]f(x) = \frac{sin(x)}{x}[/tex]

use the expression of the Fourier Integral to calculate u(x,t).

Homework Equations





The Attempt at a Solution



Do I simply plug this into the general product solution for u(x,t)??
 
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  • #2
When you get your solution for u(x,t), put t=0 and then equate that to sin(x)/x.
 

1. What is the equation and f(x) given?

The equation refers to a mathematical expression that equates two values or sets of values. On the other hand, f(x) is a function that represents the output or dependent variable in relation to the input or independent variable x.

2. How do you find the solution of an equation using a given f(x)?

To find the solution of an equation using a given f(x), you need to substitute the given value of x in the function and solve for the output or value of f(x). This will give you the solution to the equation.

3. What are the steps involved in finding the solution of an equation using a given f(x)?

The steps involved in finding the solution of an equation using a given f(x) are:
1. Substitute the given value of x in the function f(x).
2. Simplify the resulting expression.
3. Solve for the output or value of f(x).
4. Check your solution by substituting it back in the original equation.
5. If the solution satisfies the equation, then it is the correct solution.

4. Can the solution of an equation using a given f(x) be written in different forms?

Yes, the solution of an equation using a given f(x) can be written in different forms depending on the nature of the equation and the given function. It can be in the form of a single value, multiple values, or an expression containing variables.

5. Why is it important to find the solution of an equation using a given f(x)?

Finding the solution of an equation using a given f(x) is important because it helps in understanding the relationship between the input and output variables. It also allows us to determine the value of the dependent variable for a given value of the independent variable, which is essential in solving real-world problems.

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