(iv) (–1 , √3)
Sol. The terminal
arm passes through P (–1, √ 3)
∴ x = – 1 and y = √3
r = √(x2+y2
)
∴ r =√((-1)2+(√3)2
)
∴ r =√(1+3)
∴ r =√4
∴ r = 2
Let the
angle be θ
sin θ = y/r = √3/2
cosec θ = r/y = 2/√3
cos θ = x/r = -1/2
sec θ = r/x
= -2
tan θ = y/x =-√3
cot θ = x/y = -1/√3
