Make y the subject of x=y2−y
I put this into Wolfram Alpha and it said the answer was (1±√4x+12) but I have absolutely no idea how it got to that answer, so I'd appreciate if someone could explain it to me, thanks in advance.
How to find limh→0sin(ha)h without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
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