Evaluate the integral.
-$$\int _ { 3 } ^ { 9 } \int _ { 3 \pi } ^ { 7 \pi } \int _ { 0 } ^ { \mathrm { z } } \frac { \mathrm { r } } { \mathrm { z } } \mathrm { d } \theta \mathrm { dz } \mathrm { dr }$$
A) $96 \pi$
B) $48 \pi$
C) $72 \pi$
D) $144 \pi$

Question

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The Answer of Evaluate the integral.
-$$\int _ { 3 } ^ { 9 } \int _ { 3 \pi } ^ { 7 \pi } \int _ { 0 } ^ { \mathrm { z } } \frac { \mathrm { r } } { \mathrm { z } } \mathrm { d } \theta \mathrm { dz } \mathrm { dr }$$
A) $96 \pi$
B) $48 \pi$
C) $72 \pi$
D) $144 \pi$

Evaluate the Integral A) 96π96 \pi96π B) 48π48 \pi48π C) 72π72 \pi72π D) 144π144 \pi144π

Evaluate the Integral A) $96 \pi$ B) $48 \pi$ C) $72 \pi$ D) $144 \pi$