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

If 4 sin2 A - 3 = 0 and 0 ≤ A ≤ 90°, then 3 sin A - 4 sin3 A is:

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