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Section 3.9

Section 3.9. Antiderivatives. ANTIDERIVATIVES. Definition : A function F is called an antiderivative of f on the interval I if F ′( x ) = f ( x ) for all x in the interval I. A NOTATION FOR THE ANTIDERIVATIVE.

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Section 3.9

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  1. Section 3.9 Antiderivatives

  2. ANTIDERIVATIVES Definition: A function F is called an antiderivative of f on the interval I if F′(x) = f (x) for all x in the interval I.

  3. A NOTATION FOR THE ANTIDERIVATIVE If the function F(x) is an antiderivative of the function f (x), we can use the following notation: Ax f (x) = F(x) For Example: Since F(x) = x2 is an antiderivative of f (x) = 2x, we can write Ax(2x) = x2

  4. THE “GENERAL” ANTIDERIVATIVE Theorem: If F is an antiderivative of f on the interval I, then the most general antiderivative of f on I is F(x) + C where C is an arbitrary constant. For Example: The most general antiderivative of 2x is x2 + C; that is, Ax(2x) = x2 + C

  5. PARTICULAR ANTIDERIVATIVES • Definition: A particular antiderivative is an antiderivative with a specific number for the constant, C, in the general antiderivative. • For Example: Each of the following is a particular antiderivative of 2x. • x2 • x2 + 4 • x2− 98

  6. SOME ANTIDERIVATIVE FORMULAS Power Rule: Addition/Subtraction Rule: Constant Multiple Rule:

  7. SOME TRIGONOMETRIC ANTIDERIVATIVES

  8. DIFFERENTIAL EQUATION Definition: An equation that involves the derivatives of a function is called a differential equation.

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