cos(θ) = 1
sin(θ) = [tex] \sqrt{1-cos^2} =\sqrt{1-1^2} = 0 [/tex]
sin(θ)=0
It means θ = 0 , 360
y= sin(θ) , it does not has any Vertical Asymptote
y=cos(θ), it also does not has any vertical Asymptote
y= tan(θ) , It does not has Vertical Asymptote at 0 and 360.
y = sec(θ) , it does not has vertical asymptote at 0 and 360 .
y=csc(θ) , it has vertical asymptote at 0 and 360
y= cot(θ) , it also has vertical asymptote at 0 and 360.
