Mathematics · Trigonometry
If (2 cos A + 1) (2 cos A - 1) = 0, where 0° < A ≤ 90°, then find the value of A.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 130°
- 290°
- 345°
- 460°✓
Correct answer
60°
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