Published by:
CGP EDU Academic Team
Published on: August 13, 2026
cos –1 
= cos –1 
– cos –1 x holds if
Text Solution
Verified by ExpertsThe correct answer is:
C
RHS cos –1 
– cos –1 x; cos –1 
considering cos –1 
≥ cos –1 x ; 
≤ x
true for all positive x, also
for cos –1 x → –1 ≤ x ≤ 1,Hence 0 ≤ x ≤ 1
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