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

2 tanx + 3 cotx = 5 எனில், 4 tan2 x + 9 cot2 x இன் மதிப்பு என்ன ?

1
11
2
15
3
17
4
13
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