Solving a triple integral

Hello,

I'm trying to solve the triple integral in the attachment. I am so lost right now, because the constant A is actually a vector. Any help would be greatly appreciated. Thanks.

Answer 1

[Torsten]

Take A out of the integral and use

https://de.mathworks.com/help/matlab/ref/integral3.html

Best wishes

Torsten.

[Abdurrahman M]

Thank you for your response.