Решите систему неравенств:

Question

Решите систему неравенств:
0} \atop {sinx>-1/2}} \right. " alt=" \left \{ {{tgx>0} \atop {sinx>-1/2}} \right. " align="absmiddle" class="latex-formula">

Answer 1

2πn-π/6+2πn<7π/6+2πn<br>x∈(2πn;π/2+2πn) U (π+2πn;7π/6+2πn)