Half Angle Identities to Evaluate Trigonometric Expressions, Example 2

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  1. Patrick J
  2. math
  3. trigonometry
  4. half
  5. angle
  6. identity
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Комментарии
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I love this guy! Otherwise I would be just crying over my hw ^^'

Beatle
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What would you do on a problem such as Tan (pi/12)? I had this one on my home work and it is stumping me. any response would be great thanks

AflyingtankPs
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in your tangent's formula of half measure angle... you have less square root... that must me the square root of 1-cos x/1+cos x... please reply if you think i'm correct... :)

francisfernandez
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helpful video... explains the problem thoroughly

josedeaztlan
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Can u use a traingle wit pythagrean theorem to get the value?

bunbungirl
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How do you know to use the half angle formula for 105 instead of double angle (45+60)?

Brutality
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factor out a 1/2 from pi/12

it becomes 1/2 * pi/6 and you get work that out from there

ISHYGDDT
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to retain the value. having it over 2 wouldn't be allowed if it wouldn't be equal to the original angle

angcientrock
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Why double the degree in the beginning?

privatezeron