I have to explain 0.999…=1 to people who don't know limit.
How can I explain 0.999…=1?
The common procedure is as follows
x=0.999…10x=9.999…
9x=9 so x=1.
Answer
What I always find the most simple explanation is: 13=0.333…⟹1=3⋅13=3⋅0.333…=0.999…
I have injection f:A→B and I want to get bijection. Can I just resting codomain to f(A)? I know that every function i...
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