| 1. | One way is to apply the law of cosines twice.
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| 2. | Whether the law of cosines can be deduced from these identities is another question.
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| 3. | This relation can be considered to be a law of cosines for a quadrilateral.
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| 4. | The scattering angle, derived from the law of cosines is with respect to the sun.
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| 5. | In France, the law of cosines is still referred to as the " theorem of Al-Kashi ".
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| 6. | Therefore, by the law of cosines,
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| 7. | This formula is a special form of the hyperbolic law of cosines that applies to all hyperbolic triangles:
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| 8. | The formula you'd want is law of cosines . talk ) 05 : 32, 7 March 2010 ( UTC)
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| 9. | Using the law of cosines, I managed to get what appears to be the exact formula for this time delay.
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| 10. | It's the Lorentzian version of the law of cosines .-- talk ) 06 : 11, 29 May 2011 ( UTC)
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