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- TL;DR Summary
- I have included some improper integrals with the solutions and would like help as to the approach needed to reach the solutions

Hi,

I have pasted two improper integrals. The text has evaluated these integrals and come up with answers. I wanted to know how these integrals have been evaluated and what is the process to do so.

Integral 1

Now the 1st integral is again integrated

Now the text accompanying the integration

So can some one please help me in figuring out how the integration over x coordinate gives the delta function and how over the kx coordinate gives the equation (8). Links to formulas would be helpful. Any help would be quite appreciated

I have pasted two improper integrals. The text has evaluated these integrals and come up with answers. I wanted to know how these integrals have been evaluated and what is the process to do so.

Integral 1

Now the 1st integral is again integrated

Now the text accompanying the integration

So can some one please help me in figuring out how the integration over x coordinate gives the delta function and how over the kx coordinate gives the equation (8). Links to formulas would be helpful. Any help would be quite appreciated