Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let f : [0, 4 π ] → [0, π ] be defined by f(x) = cos –1 (cos x). The number of points x ∈ [0, 4 π ] satisfying the equation f(x) = 
is
Text Solution
Verified by ExpertsThe correct answer is:
3
(3)
Sol. f(x) = (sin –1 ) x ∈ [0, 4 π ] & f(x) = 
= 1 – 
so, 3 solution.
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