railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
cos(x - y) = \(\frac{{\sqrt 3 }}{2}\), and sin(x + y) = 1, where x and y are positive acute angles and x ≥ y, then x and y are:
1
60º, 30º
2
70º, 20º
3
80º, 10º
4
50º, 40º