2^n*3^n*5^(n+1)/30^n
=(2*3*5)^n*5/30^n
=30^n*5/30^n
=5
-1^0 -2^-1 *3^-1 *【2-(-3)^2】
=-1-(1/2)*(1/3)*(2-9)
=-1-(1/6)*(-7)
=-1+7/6
=1/6
2^n*3^n*5^(n+1)/30^n
=(2*3*5)^n*5/30^n
=30^n*5/30^n
=5
-1^0 -2^-1 *3^-1 *【2-(-3)^2】
=-1-(1/2)*(1/3)*(2-9)
=-1-(1/6)*(-7)
=-1+7/6
=1/6