@AndrezaGabriely123

AndrezaGabriely123

Principiante

Quais sao os valores de senx e cosx,sendo senx=-2cosx,com pi/2 <x<pi
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calcule : a)sen-45 b)sen-240° c)sen11pi/6 d)sen-60° e)tg1215° f)sec33pi/6
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