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Before we get started with answering the question, it is generally good practice to write down any formulas and equations you know that will help us work through the solution. So what formula do we know t...

Translation: Those who commit offences should be severely punished.

-cos(2x)/(x²) - 2sin(2x)/(x)

For questions like these it's easier to first rewrite z as z=x+iy. 

Once we plug this back into the original equation we get x-iy-i = 2ix-2y+1

Rearranging both sides to group together the re...

If you have an excuse to use fancy grammar, use it! You must read through your work with a critical eye, or think critically before beginning a task, and work out how you can best formulate sentences to s...