Mark the correct alternative in the following:
Let A = {x ∈R : x ≠ 0, -4 ≤ x ≤ 4} and f : A → R be defined by 
for x ∈ A. Then A is
When -4≤x<0
=-1
When 0<x≤4
=1
R(f)={-1, 1}
Option A is correct..
1
Mark the correct alternative in the following:
Let A = {x ∈R : x ≠ 0, -4 ≤ x ≤ 4} and f : A → R be defined by for x ∈ A. Then A is
When -4≤x<0
=-1
When 0<x≤4
=1
R(f)={-1, 1}
Option A is correct..