Show that tan 3x tan 2x tan x = tan 3x – tan 2x – tan x.
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Answered by
1
Answer:
tan3x=tan(2x+x)
⇒tan3x=
1−tan2x.tanx
tan2x+tanx
⇒tan3x−tan3xtan2xtanx=tan2x+tanx
⇒tan3x−tan2x−tanx=tan3xtan2xtanx
Answered by
6
tan3x=tan(2x+x)
⇒tan3x=
1−tan2x.tanx
tan2x+tanx
⇒tan3x−tan3xtan2xtanx=tan2x+tanx
⇒tan3x−tan2x−tanx=tan3xtan2xtanx
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