Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The least positive integer 
for which 
Text Solution
Verified by ExpertsThe correct answer is:
B
We are solving:
Step 1: Simplify the left-hand side
So 
.
Step 2: Simplify the right-hand side
The arc sin of this, for 
, gives:
So the equation becomes:
Step 3: Solve 
The powers of 
cycle as 
So the smallest positive 
such that 
is: 4
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