SSC IB ACIO Grade II Mock Test 2023 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If (cos2θ –1)(1 + tan2θ) + 2tan2θ = 1, 0° ≤ θ ≤ 90° then θ is:
1
90°
2
60°
3
30°
4
45°
If (cos2θ –1)(1 + tan2θ) + 2tan2θ = 1, 0° ≤ θ ≤ 90° then θ is: