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Can anybody help me plzz my ques. Is tan 3x tan 2x tan x = tan 3x - tan 2x - tan x
  • 2 answers

Anargha Pal 7 years, 5 months ago

Thank u prerna

Prerna Saxena 7 years, 5 months ago

Tan3x=(2x+x) Therefore,tan3x=tan2x+tanx/1-tan2xtanx,.....cross multiply .....tan3x-tan3xtan2xtanx=tan2x+tanx......hence tan3xtan2xtanx=tan3x-tan2x- tanx
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