Question

Сократите дробь b^12+b^6+1/b^18-1

Answer 1

$frac{b^{12}+b^{6}+1}{b^{18}-1} = frac{b^{12}+b^{6}+1}{(b^{6}-1)(b^{12}+b^{6}+1)}= frac{1}{b^{6}-1}$