VTU Engineering Maths 2 Triple integral example easy method (PART-2)

In this video explaining one mathematical problem. -~-~~-~~~-~~-~- Please watch: "Laplace transform of unit step function fourth problem(PART-4) by easy maths easy tricks" https://www.youtube.com/watch?v=_7ICtZQYYFw -~-~~-~~~-~~-~-