Antiderivative of 4-3(1+x^2)^-1 | Graph Comparison

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In summary, the conversation involved finding the antiderivative F of an equation and verifying it by comparing the graphs of f and F. The attempt at a solution involved using the equation F(x)=4x -3tan^-1(x) + C and plugging in the given value for F(1) to solve for C. There was some uncertainty about the correctness of the solution and the value of C.
  • #1
master1425
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Homework Statement


Find the antiderivative F of f that satisifies the given condition. Check by comparing the graphs of f and F.

f(x)=4-3(1+x^2)^-1
F(1)=0


Homework Equations





The Attempt at a Solution


So far what I attempted to do was this:

F(x)=4x -3tan^-1(x) + C
but was unsure from here on.
 
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  • #2
Just plug in the given value for F(1) = 0 and solve for C.
 
  • #3
Ok so my F(x) is correct?

That was probably the part I needed the most assurance with.
 
  • #4
master1425 said:

Homework Statement


Find the antiderivative F of f that satisifies the given condition. Check by comparing the graphs of f and F.

f(x)=4-3(1+x^2)^-1
F(1)=0


Homework Equations





The Attempt at a Solution


So far what I attempted to do was this:

F(x)=4x -3tan^-1(x) + C
but was unsure from here on.
(4x)'= 4 and
(-3 arctan(x))'= -3/(x2+1)
so what is F' ?

F(1)= 4(1)- 3arctan(1)+ C= 0. C= ?
 

1. What is an antiderivative?

An antiderivative is the reverse operation of a derivative. It is a function that, when differentiated, results in the original function.

2. Why is finding the antiderivative important?

Finding the antiderivative allows us to determine the original function from its derivative. This is useful in many scientific and mathematical applications, such as finding the position of an object from its velocity function.

3. How do you find the antiderivative of a function?

To find the antiderivative of a function, you can use integration techniques such as the power rule, substitution, or integration by parts. These techniques involve manipulating the function algebraically to find a new function that, when differentiated, results in the original function.

4. What is the difference between an indefinite and definite antiderivative?

An indefinite antiderivative is the general solution to an antiderivative problem, while a definite antiderivative is a specific solution that includes limits of integration. Indefinite antiderivatives are represented by the constant "C" while definite antiderivatives do not have a constant term.

5. Can any function have an antiderivative?

Not all functions have antiderivatives. Some functions may have antiderivatives that cannot be expressed in terms of elementary functions, while others may not have antiderivatives at all. These functions are called non-integrable or non-elementary functions.

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