state gov TSPSC Forest Beat Officer (ఫారెస్ట్ బీట్ ఆఫీసర్) Mock Test 2023 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
(sin θ + cosec θ)2 + (cos θ + sec θ)2 − 1 = ______.
1
6 + tan2 θ + cot2 θ
2
sin2 θ − cos2 θ
3
tan2 θ − cot2 θ
4
6 − sin2 θ + cos2 θ