Question

cos(x-p/6)>-1/2 решить неравенство

Answer 1

$-\frac{2 \pi }{3}+2 \pi k\ \textless \ x- \frac{ \pi }{6}\ \textless \ \frac{2 \pi }{3}+2 \pi k$
$-\frac{2 \pi }{3}+\frac{ \pi }{6}+2 \pi k\ \textless \ x\ \textless \ \frac{2 \pi }{3}+\frac{ \pi }{6}+2 \pi k$

$-\frac{3 \pi }{6}+2 \pi k\ \textless \ x\ \textless \ \frac{5 \pi }{6}+2 \pi k$
k∈Z