Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Consider f(x) = tan –1 
, x ∈ 
. A normal to y = f(x) at x = 
also passes through the point :
A
B
C
D
(0, 0)
Text Solution
Verified by ExpertsThe correct answer is:
A
at x = 
⇒ y = 
f(x) = tan –1 
x ∈ 
= tan –1 
f(x) = 
f'(x) = 
slope of normal = –2
equation of normal y – 
= –2 
y = –2x + 
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