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Dictionary

law' of sines'

Trigonom.
1. a law stating that the ratio of a side of a plane triangle to the sine of the opposite angle is the same for all three sides.
2. a law stating that the ratio of the sine of an arc of a spherical triangle to the sine of the opposite angle is the same for all three arcs.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

law of segregation

law of superposition

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