Question

сократить дробь . очень срочно!!!

Answer 1

216^(n-1) = 2^(3n-3)*3^(3n-3)
6^n = 2^n*3^n
получаем:
2^(3n-3)*3^(3n-3)/(  2^(n+2n-1)*3^(1+n+2n+1)  ) = 2^(3n-3-3n+1)*3^(3n-3 - 3n -2) = 2^(-2) * 3 ^(-5) = (1/2^2 )* (1/3^5)