Chapter 4: Q. 8 (page 372)
Why is it not necessary to write down an anti-derivative family when using the Fundamental Theorem of Calculus to calculate definite integrals? In other words, why don’t we have to use “+C”?
Short Answer
It is not necessary to write down an anti-derivative family or "+C" when using the Fundamental Theorem of Calculus to calculate definite integrals is because it is a number having the exact value.