1003085910 | math4u.vsb.cz

SubArea:

Trigonometric equations and inequalities

Level:

Project ID:

1003085910

Accepted:

1

Clonable:

0

Easy:

0

The solution set of the inequality

{tg}^{3} x + {tg}^{2} x - tg x - 1 < 0

for

x \in (- \frac{π}{2}; \frac{π}{2})

is:

(- \frac{π}{2}; \frac{π}{4})

(\frac{π}{2}; \frac{7 π}{4})

(- \frac{π}{2}; \frac{3 π}{4})

(- \frac{π}{2}; \frac{π}{2})