Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If tan 2A = cot(A - 18°) and 2A is an acute angle, then find 'A'.
1
24°
2
36°
3
28°
4
More than one of the above
5
None of the above