Why do we add constant in indefinite integrals?

Related questions

1. Why is integration more difficult than differentiation?
2. Is 0 a constant number?
3. What does Nint mean in calculus?
4. Does the derivative of 0 exist?
5. What does infinity plus one equal?
6. What is E to the infinity?
7. Why integration is required?
8. What is integral calculus used for?
9. Is it hard to learn calculus?
10. Is calculus differentiation or integration?

Tags

1. #constant
2. #solving
3. #gives
4. #always
5. #differential
6. #forms
7. #integration
8. #functions
9. #finding
10. #account
11. #indefinite
12. #family
13. #integral
14. #solution
15. #equation
16. #general