Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If 2 × cos(A + B) = 2 × sin(A - B) = 1, find the value of A and B.
1
A = 45° and B = 15°
2
A = 90° and B = 0°
3
A = 30° and B = 60°
4
A = 15° and B = 45°