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#1 2008-05-13 19:05:11
- parseconds
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- Registered: 2008-05-13
- Posts: 3
Arcsin & Arccos
Please help?
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#2 2008-05-14 00:47:28
- JaneFairfax
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- Registered: 2007-02-23
- Posts: 6,868
Re: Arcsin & Arccos
Assume that all the angles are in the first quadrant.
Then note that
and .Is this obvious to you? Okay
Similarly for the other one.
Hence
Last edited by JaneFairfax (2008-05-14 00:49:17)
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