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