1003076510 | math4u.vsb.cz

SubArea:

Sine, cosine, tangent and cotangent

Level:

Project ID:

1003076510

Accepted:

1

Clonable:

0

Easy:

1

If the angle

α \in [0; 90^{\circ}]

and

\sin α = 0.5

, then

\cos α

is equal to:

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

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

- \frac{1}{2}

\frac{1}{2}