state gov APPSC Forest/Assistant Beat Officer (ఫారెస్ట్/అసిస్టెంట్ బీట్ ఆఫీసర్) (Pre + Mains) Mock Test 2025 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If a cot θ + b cosec θ = p and b cot θ + a cosec θ = q then p2 - q2 is equal to _________.
1
b2 - a2
2
a2 - b2
3
b - a
4
a2 + b2