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• IIT JEE 2015 Discussion Forum › Trignometry questions › plz solve this trigo q if....θ= ​2009 ​ ​2Ï€ ​​ ....then.....cosθcos2θcos3θ.
  Help me with this. I need it urgently. And I want full solution ...
  0·0· #Trigonometric functions
  asked2016-06-27 18:48:03