I have what appears to be a simple question but am lost as how to start it. I have been asked to show that:
Is there some sort of logical process that I can follow in this instance - a process I could put into code for a computer to follow, or do I simply need to have some sort of insight to 'see' what I need to do, because that is something I am really bad at.
Could someone please instruct me on how I should start this, and also let me know what the significance of the absolute brackets are? I find them confusing and don't understand their purpose in this question.