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

cos4 θ - sin4 θ = 4/5 எனில், sin 4θ-ன் மதிப்பைக் கண்டுபிடி.

1
16/25
2
24/25
3
18/25
4
21/25
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