Cho \(a,b \in R,a var DOMAIN = "https://hoc247.net/"; var...

A. \(\int\limits_a^b {f\left( x \right)} dx = \frac{{{b^6} - {a^6}}}{6}\)

B. \(\int\limits_a^b {f\left( x \right)} dx = 6\left( {{b^6} - {a^6}} \right)\)

C. \(\int\limits_a^b {f\left( x \right)dx = \frac{{{b^6} - {a^6}}}{6}} \)

D. \(\int\limits_a^b {f\left( x \right)} dx = {b^5} - {a^5}\)