$-\frac{\sqrt{3}}{2}$

1

2

-1/2

1

2

1

2

3

1

2

3

$\frac{\sqrt{3}}{2}$

$-\frac{\sqrt{3}}{2}$

$\frac{1}{\sqrt{2}}$

-1

-2

-3

0

1

2

$\frac{1}{\sqrt{2}}$

1

2

1

2

3

$\frac{\sqrt{3}}{2}$

$-\frac{\sqrt{3}}{2}$

$\frac{1}{\sqrt{2}}$