9000046605 | math4u.vsb.cz

SubArea:

Trigonometric equations and inequalities

Level:

Project ID:

9000046605

Accepted:

1

Clonable:

0

Easy:

0

Identify an inequality which is true for

x = \frac{π}{6}

.

\sin x \cdot \cos x < \frac{\sqrt{2}}{2}

\cos 2 x > \frac{\sqrt{2}}{2}

tg (- x) > 0

{cotg}^{2} x < 0