SSC SSC Selection Post (Phase 13) 2025 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If tan A + sin A = x, tan A — sin A = y, what is the value of x2 — y2?
1
\(\rm \sqrt{xy}\)
2
\(\rm 4\sqrt{xy}\)
3
\(\rm4\sqrt{\frac{x}{y}}\)
4
\(\rm2\sqrt{\frac{x}{y}}\)