By definition we know that: log(xn)=nlog|x| as known property in logarithm function .
If it's not a trivial question, how do I prove that :log(xn)=nlog|x|?
Note: x is real number, n is a natural number.
Thank you for any help.
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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