Write the area of the triangle formed by the coordinate axes and the line sec θ−tan θ)x+(sec θ+tan θ)y=2.
(sec θ−tan θ)x+(sec θ+tan θ)y=2
x2(sin θ−tan θ)+y2(sec θ+tan θ)=1
So,a=2sec θ−tan θ,b=2sec θ+tan θ
Area of required triangle
A=12ab
=12(2sec θ−tan θ)(2sec θ+tan θ)
=2sec2θ−tan2θ
A=2 sq,units