railway RRB Technician Grade 1 Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If sec x – cos x = 4, then what will be the value of \({{(1 \ + \ cos^2 x)} \over cos x}\)?
1
9/4
2
1/4
3
\(2{ \sqrt{5}} \)
4
\({ \sqrt{5} } \)