Question

24.Which option is correct?


1] f is integrable on [a, b] iff for every e<0 there exists a partition P such that U(P, f) - L(P, f)= 0.


2] f is integrable on [a, b] iff for every e<0 0 there exists a partition P such that U(P, f) - L(P, f) >e.

3] f is integrable on [a, b] iff for every e> 0 there exists a partition P such that U(P, f) - L(P, f)>e.


4] f is integrable on [a, b] iff for every e> 0 there exists a partition P such that U(P, f) - L(P, f) < e.​

Answer 1

Answer:

From my opinion no.1 is correct