Let f R→R be defined by f(x)=, xR. then the range of f is 

(a) 
(−1, 1)−{0} 
(b) 

(c) 
R− 
(d) 
R− [−1, 1] 
Let f R→R be defined by f(x)=, xR. then the range of f is 

(a) 
(−1, 1)−{0} 
(b) 

(c) 
R− 
(d) 
R− [−1, 1] 
f(0)=0 & f(x) is odd.
Further, if x>0 then
f(x)=
Hence, f(x)∈