1003085909 | math4u.vsb.cz

SubArea:

Trigonometric equations and inequalities

Level:

Project ID:

1003085909

Accepted:

1

Clonable:

1

Easy:

1

The solution set of the inequality

| tg x | < 1

for

x \in (- \frac{π}{2}; \frac{π}{2})

is:

(- \frac{π}{4}; \frac{π}{4})

(- \frac{π}{2}; \frac{π}{2})

(0; \frac{π}{4})

(- \frac{π}{2}; - \frac{π}{4})