Question

why do we integrate anything?what is its importance ?
why do we integrate anything?what is its importance ?
@Mathematics

Answer 1

When you get further along it is helping for finding area under a curve or even in physics when deriving Maxwell's equations for B field. You will use it A LOT and once you actually use it in upper level classes you will realize the need for it

Answer 2

same reason you might add, since they are almost the same thing