Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which of the following pairs(s) of function is(are) identical?
A
B
, where 
denotes signum function of 
. C
D
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, c)
Put 
Identical functions
But 
.
(Think ? Domain of 
)
As 
So, 
So, 
and 
are identical functions.
So, 
and 
are not identical functions.
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