The integrals which are directly obtained from their corresponding derivatives are known as the standard results of integration.

Integration by decomposition

Apply this method, whenever the integrand is impossible to integrate directly, but it can be integrated after decomposing into a sum or difference of integrands whose individual integrals are already known.

Note

The integrals which are directly obtained from their corresponding derivatives are known as the standard results of integration.

Type: I

Exercise 2.1

Integrate the following with respect to *x*.

7. If *f* ′(x) = x + b, *f* (1) = 5 and *f* (2) = 13, then find *f *(*x*)

8. If *f* ′(x) = 8*x*3 − 2*x* and *f* (2) = 8, then find *f* (*x*)

Answers:

Tags : Exercise and Example Solved Problems with Answer, Solution | Methods of integration , 12th Business Maths and Statistics : Chapter 2 : Integral Calculus - I

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12th Business Maths and Statistics : Chapter 2 : Integral Calculus - I : Integration by decomposition: Type I | Exercise and Example Solved Problems with Answer, Solution | Methods of integration

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