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 Post subject: Can anyone help explain
PostPosted: Wed, 9 May 2012 02:19:57 UTC 
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Sin^-1 (rad(3)/2)


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PostPosted: Wed, 9 May 2012 03:09:22 UTC 
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rebecca120 wrote:
Sin^-1 (rad(3)/2)


Explain what? You don't have a question. And what is rad(x)? Are you indicating x is in radians?

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PostPosted: Wed, 9 May 2012 04:41:13 UTC 
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Hello, rebecca120!

Quote:
\sin^{-1}\left(\dfrac{\sqrt{3}}{2}\right)

\text{Let }\,\theta \:=\:\sin^{-1}\left(\dfrac{\sqrt{3}}{2}\right)

\text{Then: }\:\sin\theta \:=\:\dfrac{\sqrt{3}}{2}


\text{Recall the unit circle.}

\text{Which angles have a sine of }\frac{\sqrt{3}}{2}\.?



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