1003085904 | math4u.vsb.cz

SubArea:

Trigonometric equations and inequalities

Level:

Project ID:

1003085904

Accepted:

1

Clonable:

0

Easy:

1

The solution set of the inequality

\cos^{2} x < - 1

for

x \in R

is:

\emptyset

R

⋃_{k \in Z} (k π; 2 k π)

⋃_{k \in Z} (\frac{3 k π}{2}; 2 k π)