Помогите пожалуйстаа :
[tex]tgx=-2[/tex]
[tex]ctgx=-1[/tex]
[tex]sin3x= \frac{1}{2} [/tex]
[tex]cos(x+ \frac{ \pi }{6} )= - \frac{1}{2} [/tex]
[tex]tg2x=- \frac{ \sqrt{3} }{3} [/tex]
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