Question

Сократите дробь.
12^n-1 2^2n-1 * 3^n+3

Answer 1

$frac{12^{n-1}}{2^{2n-1}*3^{n+3}}= frac{(2^2*3)^{n-1}}{2^{2n-1}*3^{n+3}}= frac{2^{2n-2}*3^{n-1}}{2^{2n-1}*3^{n+3}}= 2^0*3^{n-1-n+3}=3^2=9$