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If 2 cos 3θ = 1 then θ = ?
Mathematics
T-Ratios of Some Particular Angles
Question
Updated
19 Aug 2026
If 2 cos 3\(\theta\) = 1 then \(\theta\) = ?
A
Choose Your Answer
A
\(10^\circ\)
B
\(15^\circ\)
C
\(20^\circ\)
D
\(30^\circ\)
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