SSC SSC Selection Post (Phase 13) 2025 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If \(\rm cos x + sec x = {7 \over2 \sqrt3}\), then the value of cos2x + sec2x will be ________.
1
\(15 \over 12\)
2
\(10 \over 12\)
3
\(25 \over 10\)
4
\(25 \over 12\)