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प्रश्न
Solve for x : cos (2x - 30°) = 0
बेरीज
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उत्तर
cos (2x – 30°) = 0
cos ( 2x – 30°) = cos 90°
2x – 30° = 90°
2x = 120°
x = 60°
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Trigonometric Equation Problem and Solution
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