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Б) 2Cos ([tex]\frac{\pi }{6}[/tex]-[tex]\frac{x}{6}[/tex])=-[tex]\sqrt{3}[/tex]
Б) 2Cos ([tex]\frac{\pi }{6}[/tex]-[tex]\frac{x}{6}[/tex])=-[tex]\sqrt{3}[/tex]
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Ответ:
Объяснение:
cos(x/6 -p/6)=V3/2, (1 ) x/6-p/6=p/6+2pn, x/6=p/6 +p/6+2pn,
x/6=p/3 +2pn, x=6p/3 +12pn, x=2p+12pn,
(2) x/6-p/6=-p/6+2pn, x/6=2pn, x=12pn, n E Z
(сosx-четная функция и сos(-a)=cosa)