The existence interval of a positive zero of the equation x ^ 5-x-1 = 0 may be A.【0.1】B.【1.2】C.【2.3】D.【3.4】

The existence interval of a positive zero of the equation x ^ 5-x-1 = 0 may be A.【0.1】B.【1.2】C.【2.3】D.【3.4】


Let f (x) = x ^ 5-x-1
Substituting x = 0,1,2,3,4
If f (a) * f (b)