Dr. J's Maths.com
Where the techniques of Maths
are explained in simple terms.

Calculus - Integration - basic.
Test Yourself 2.


The types of questions on this page which can be reached using the relevant hyperlinks are:

1. Finding primitives
2. Finding indefinite and definite integrals.
3. Finding the equations of curves.

NOTE: Answers to Q1-36 are in the solutions (see the end of this page for the hyperlink).

 

Find primitives/indefinite integrals of each of the following:

1. 4x + 5 2. x3 - 2x + 4 3. 3x-3 + 4x-4 + x4 - 4
4. 5. 6. (x-2 + 1)(x-1 + x2 +4)
7. (x + 3)(3x - 5) 8. (4x - 1)(x3 + 1) 9.
10. (2x + 1)2 11. (4 - 3x)5 12.
13. 14. 15.

 

 

Integrate each of the following indefinite integrals:

16. 17. 18.
19. 20. 21.
22. 23. 24.
25. 26. 27.

28. (i) Prove that

(ii) Hence or otherwise find

29. 30.
31. 32.

33. Use two different approaches to the following integration to show that:

34. 35. 36.

 

Evaluate each of the following definite integrals:

37.

Answer.-4.5.

38.

Answer.12

39.

Answer.0.

40.

Answer.23.47.

41.

Answer.15/64.

42. If

find the value of m.

Answer.1/8.

43. If , find the value of m.

Answer.m = 4.

44. If find the value of k.

Answer.k = 0.8.

45. If
find the value of h.

Answer.h = ± √3.

 

Finding the equations of curves.
46. The graph of f(x) passes through the point (1, 3) and f '(x) = 3x2 - 2.

Find f(x).

Answer.f(x) = x3 - 2x + 4.

47. The graph of y = f(x) passes through the point (2, 12).

The derivative function is f '(x) = 9x2 + 4.

Find f(x).

Answer.f(x) = 3x3 + 4x2 - 20.

48. The derivative of a function f(x) is
f '(x) = 6x + 4.

The line y = 10x - 5 is tangent to the graph of f(x).

Find the function f(x).

Answer.f(x) = 3x2 + 4x - 2.

49. If and when y =0, z = 1.5, find f(y).