If x = p tan θ + q sec θ and y = p sec θ + q tan θ then prove that 2 2 2 2 x − y = q − p . .

If x = p tan θ + q sec θ and y = p sec θ + q tan θ then prove that

1.	If x = p tan θ + q sec θ and y = p sec θ + q tan θ then prove that 2 2 2 2 x − y = q − p . .
Answer»