ap-calculus-ab None Q21

ap-calculus-ab · USA · -bc_1969-1998_multiple-choice-collection Indefinite & Definite Integrals Average Value of a Function
21. The average value of $\frac { 1 } { x }$ on the closed interval $[ 1,3 ]$ is
(A) $\frac { 1 } { 2 }$
(B) $\frac { 2 } { 3 }$
(C) $\frac { \ln 2 } { 2 }$
(D) $\frac { \ln 3 } { 2 }$
(E) $\ln 3$
21. The average value of $\frac { 1 } { x }$ on the closed interval $[ 1,3 ]$ is\\
(A) $\frac { 1 } { 2 }$\\
(B) $\frac { 2 } { 3 }$\\
(C) $\frac { \ln 2 } { 2 }$\\
(D) $\frac { \ln 3 } { 2 }$\\
(E) $\ln 3$\\