@SimplyBeautifulArt Why not trying to make the title a bit more descriptive. For example, including something like "using complex numbers I get $\cos 2x=e^2\cos x$. And perhaps adding (complex-numbers) tag? Maybe also (fake-proofs)?
Bumping might either result in somebody noticing it and adding the missing deleted vote. Or - if it is not deleted and it says - it will be marginally more useful now than with the original title.
I assume that loss of reputation was not the main reason why you wanted to delete it - I have added one upvote, so that if it stays you have $-1$ reputation from that question at the moment. (It is a question which I might upvote if I saw it coming from a relatively new user - the OP obviously tried something and they clearly showed what they have tried. Which is more that many new users do.)
Although I agree that this room was probably best shot to find some users who would vote to delete - since several users who are quite generous with delete votes visit the room.
From the past conversations it seems that there is quite wide range of users' opinions on deletion, ranging from strong inclusionism to strong deletionism, if I may borrow the terminology from Wikipedia.
@MartinSleziak In fact, I would normally leave posts of the sort SBA asked to delete, since it shows some effort. But since he wants it deleted and there's little benefit for others to see it, I've nothing wrong with deleting it. =)
@user21820 Yes, that is rather consistent with the reasons I mentioned for my upvote. (And they are exactly the reasons why I am a bit hesitant to vote to delete - or at least let's call it that I am undecided at the moment.)
I agree that the fact that the OP wants to delete the post has some weight. (Of course, the OP's wishes would be not a sufficient reason in case of a post which is useful and adds valuable content to the site.)
