We have N numbers $x_{k} \geq0 $. What is the $\lim _ { n \rightarrow \infty } \sqrt [ n ] { x _ { 1 } ^ { n } + \ldots + x _ { N } ^ { n } }$ ? Any hints?
I have injection $f \colon A \rightarrow B$ and I want to get bijection. Can I just resting codomain to $f(A)$? I know that every function i...
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