Question

сократить дробь 45^(n+2)/(3^(2n+3)*5^(n+1))

Answer 1

5^(n+2)*3^(n+2)*3^(n+2)/(3^(2n+3)*5^(n+1))=

=5*3^(n+2)*3^(n+2)/(3^(n+2)*3^(n+1))=5*3=15