anonymous
  • anonymous
In Session 78: Computing the Length of a Curve » Clip 3: Example: Circular Arc (7 min) they get to the sin(alpha)=a. But "a" is on the x line, and as far as i know that's actually the cosine of alpha. Am I missing something here? I can't imagine how can that horizontal "a" be a sine of the angle.
OCW Scholar - Single Variable Calculus
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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TuringTest
  • TuringTest
more clear this way?|dw:1327767828172:dw|
TuringTest
  • TuringTest
|dw:1327767954118:dw|
TuringTest
  • TuringTest
...if we had alpha on the right instead|dw:1327768032374:dw|then a would be the cosine

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anonymous
  • anonymous
Oh it's the other angle, missed that! Thanks! :)

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