Question 62555
f(x) = 1/x^4

Here we find that the function is undefined when x takes the value 0.
Which means that x can take any real value other than zero
So domain = R - {0}

We find that for any value of x, x^4 is always positive.

So range of the function = the set of positive real numbers
  That is Range = R+


Good Luck!!!