state gov MP Excise Constable Mock Test Series 2025 Quantitative Aptitude Trigonometry

जर 4 sin 2 A - 3 = 0 आणि 0 ≤ A ≤ 90°, तर 3 sin A - 4 sin 3 A आहे:

1
\(\frac{1}{2}\)
2
\(\sqrt{\frac{3}{2}}\)
3
0
4
१
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