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**tony123****Member**- Registered: 2007-08-03
- Posts: 206

Let

be the three sides of a triangle , and let , be the angles opposite them. If ,find

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**bitus****Member**- Registered: 2008-10-12
- Posts: 20

......=(1989c^2-c^2)/2c^2=994 Note that cot(a) is negative!

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