180^o

90^o

0^o

45^o

√3

√5

√2

1

2

3

4

Collinear

Vertices of a triangle

Vertices of a right angled triangle

None of these

Does not exist

Is towards origin

Is indeterminate

None of these

0 < θ < ^π/2

0 ≤ θ ≤ ^π/2

0 < θ < π

0 ≤ θ ≤ π

^π/3

^π/6

^π/4

^π/2

3

2

5

6

0

-1

1

3

0

^π/4

^π/2

π