Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which of the following pair of functions are identical?
A
, sin 
+ cos 
B
C
, 
D
n x 3 + n x 2 , 5 n x
Text Solution
Verified by ExpertsThe correct answer is:
D
= 
sin 
+ cos 
non-identical function
Non-identical function
= |x|, x ∈ R
= x, x ∈ R + U {0} non-identical function
nx 3 + n x 2 = 5 nx, x > 0
5 x , x > 0 identical function
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