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  • 02-02-2018
  • Mathematics
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Help!!!!! I have 5 min to finish this

Help I have 5 min to finish this class=

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Аноним Аноним
  • 02-02-2018
sin O  = 1 / csc O = 2/9
cos O = sqrt (1 - (2/9)^2)  =  sqrt 77/81 = sqrt77 / 9
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