Question

Как сократить 52*10^n/5^n+5^n+2

Answer 1

$frac{52*10^n}{5^n+5^{n+2}}=frac{52*5^n*2^n}{5^n(1+5^2)}=frac{52*2^n}{26}=2*2^n=2^{n+1}$