1003076703 | math4u.vsb.cz

SubArea:

Sine, cosine, tangent and cotangent

Level:

Project ID:

1003076703

Source Problem:

Accepted:

1

Clonable:

1

Easy:

1

The expression

\frac{\sin 2 x}{\cos^{2} x}

for

x \in (- \frac{π}{2}, \frac{π}{2})

is equal to:

2 tg x

\frac{\sin x}{1 - \sin x}

{tg}^{2} x

tg 2 x