Evaluate the Integral by Changing the Order of Integration in an Appropriate

question 1

Multiple Choice

Evaluate the integral by changing the order of integration in an appropriate way.
- $$\int _ { 0 } ^ { 4 } \int _ { y } ^ { 4 } \int _ { 0 } ^ { \pi } \frac { \sin z \sin x } { x } d z d x d y$$

• A) 2(1 + sin 4)
• B) 2 cos 4
• C) 2 sin 4
• D) 2(1 - cos 4)