Решите уравнение: \(\huge tg3x=-1.\)

• \(\huge {x= -{{ \pi} \over {12}} +{{ \pi k} \over {3}}, k \in Z}\)
• \(\huge {x= -{{ \pi} \over {4}} +{{ \pi k} \over {3}}, k \in Z}\)
• \(\huge {x= -3 +{{ \pi k} \over {3}}, k \in Z}\)
• \(\huge {x= -{{ \pi} \over {9}} +{{ \pi k} \over {3}}, k \in Z}\)