railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry

यदि sinθ - cosθ = 0, (प्रथम चतुर्थांश में कोण) तो sin3θ + 3cos3θ का मान है:

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