billy18 billy18
  • 12-07-2016
  • Mathematics
contestada

Can someone please answer. There is one problem. There's a picture. Thank you!

Can someone please answer There is one problem Theres a picture Thank you class=

Respuesta :

dalendrk
dalendrk dalendrk
  • 13-07-2016
[tex]\cos x=-1\ then\ x=180^o\ and\ x=-180^o[/tex]
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