({x^-1 y^4 z^-4}{y^-2 z^3 x^-5})^-1 =z^r/(x^s y^t)

Question

({x^-1 y^4 z^-4}{y^-2 z^3 x^-5})^-1      =z^r/(x^s y^t)
r the exponent of z is
s the exponent of x is
t the exponent of y is

Answer 1

Just remember that

x^ax^b = x^a+b

and these rules apply to the power expressions as well.

also

(a/b)^-c = (b/a)^c  might help.