1003085701 | math4u.vsb.cz

SubArea:

Trigonometric equations and inequalities

Level:

Project ID:

1003085701

Source Problem:

Accepted:

1

Clonable:

1

Easy:

0

Find all

x

,

x \in R

, such that

{cotg}^{2} x = - cotg x

.

x \in ⋃_{k \in Z} [{\frac{3 π}{4} + k π} \cup {\frac{π}{2} + k π}]

x \in ⋃_{k \in Z} {\frac{3 π}{4} + 2 k π}

x \in ⋃_{k \in Z} {\frac{3 π}{4} + k π}

x \in ⋃_{k \in Z} {\frac{π}{2} + k π}