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

tan θ = 1/√5 হলে, cosec2θ – sec2θ এর মান নির্ণয় করুন।

1
12/5
2
1/5
3
13/5
4
24/5
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