Let p and q be distinct primes.
I wonder is the following statement always true?
gcd
Answer
More generally, we have \gcd(x^n-1,x^m-1)=x^{\gcd(n,m)}-1.
How to find \lim_{h\rightarrow 0}\frac{\sin(ha)}{h} without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
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