9000046601 | math4u.vsb.cz

SubArea:

Trigonometric equations and inequalities

Level:

Project ID:

9000046601

Accepted:

1

Clonable:

0

Easy:

0

Identify an inequality which is true for

x = \frac{5 π}{6}

.

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

\sin x > \frac{1}{2}

tg x > 0

cotg x \geq - 1