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• find the value
  if α, β, γ are connected by the relation 2 tan2α tan2β tan2γ + tan2α tan2β + tan2β tan2γ +tan2γ tan2α =1, then the value of cos2α +cos2β +cos2γ is ________ answer: 1 ...
  0·9· #Mathematics#Trignometry
  favorited2012-06-04 07:08:40