Derive Half Angle Formula for tan 15 degrees and Evaluate

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  1. Anil Kumar
  2. Anil kumar
  3. math
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  5. aan learning centre
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You’re not allowed to have radicals on the bottom

Johtheboss
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Rationalized it would be sqrt(7-4sqrt(3)).

But using (1-cosx/sinx) as the half angle tan formula I get (2-sqrt(3)).

I'm so confused lol. I thought both formulas were equal to each other.

TheIceDancer
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