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

​जर 10 sin4α + 15 cos4α = 6 असेल, तर 27 cosec6α + 8 sec6α ची किंमत शोधा.

1
75
2
125
3
250
4
50
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