Indefinite integral Definition and 207 Threads

In calculus, an antiderivative, inverse derivative, primitive function, primitive integral or indefinite integral of a function f is a differentiable function F whose derivative is equal to the original function f. This can be stated symbolically as F' = f. The process of solving for antiderivatives is called antidifferentiation (or indefinite integration), and its opposite operation is called differentiation, which is the process of finding a derivative. Antiderivatives are often denoted by capital Roman letters such as F and G.Antiderivatives are related to definite integrals through the fundamental theorem of calculus: the definite integral of a function over an interval is equal to the difference between the values of an antiderivative evaluated at the endpoints of the interval.
In physics, antiderivatives arise in the context of rectilinear motion (e.g., in explaining the relationship between position, velocity and acceleration). The discrete equivalent of the notion of antiderivative is antidifference.

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  1. C

    Find Indefinite Integral of 1/[(e^x)+(e^-x)]

    How do I find the indefinite integral of 1/[(e^x)+(e^-x)] ? Do I have to multiply by [(e^x)-(e^-x)]/[(e^x)-(e^-x)] to eliminate the denominator? !
  2. L

    How do you find the indefinite integral of xsinx

    I am just curious I was thinking about this and if anyone could explain I would appreciate it. I am curious to know how to find the indefinite integral of xsinx with respect to x. Thanks, David
  3. P

    Solving Int. sin(9x)sin(16x)dx w/o Multiple Angles

    \int sin(9x)sin(16x)dx is there another way of solving the problem above besides using the multiple angles formula?
  4. H

    From indefinite integral to fundamental theorem of calculus, how does it all link?

    Hi there, Can someone explain to me what the following are and how each one is used as a tool for the next one: 1)Indefinite integral 2)Riemann Sum 3)Definite Integral 4)Fundamental Theorem of Calculus(The part which says that the derivative of the integral of f(t)dt from a to x is...
  5. E

    Solving Indefinite Integral of Normal Equation

    I've been trying to integrate the following function but have gotten somewhat stuck doing it. The answer i managed to produce gave some bogan answers. the integral in question is \int e^\frac{-(x-\mu)^2}{(2\sigma)^2} where \mu and \sigma are constants. its part of the normal...
  6. D

    What is the Correct Indefinite Integral for cos(5x) + cos(4x) / (1-xcos(3x))?

    Hi! I am stuck with this integration problem: Thanks in advance.
  7. C

    Evaluate the indefinite integral.

    \int sin(7x)sin(13x)dx i just need to know how to start this, i can't use u-du... i can't borrow anything... so how would i start this?
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