Question

Consider the function f (x) = 1/x^3 +4. Then f ^-1 is defined:?
its 1 over x^3 and + 4 on outside

(a) For all x in R.
(b) For all x 6 not equal 4.
(c) For all x 6 not equal to -4.
(d) None of the above.

Answer 1

i think its 4 ??