If a cotθ + b cosecθ = p and b cotθ + a cosecθ = q, then p2 – q2 =
A. a2 – b2
B. b2 – a2
C. a2 + b2
D. b – a
Answer:B
If a cotθ + b cosecθ = p and b cotθ + a cosecθ = q, then p2 – q2 =
A. a2 – b2 B. b2 – a2 C. a2 + b2 D. b – a