Alternate form of Law of Cosines
The alternate form of the law of cosines is
cos(c)= (a^2+b^2-c^2)/(2ab)
this is helpful when solving equations to simply figure out the angle rather than having to solve the whole equation and then solving for the cos of the angle.
cos(c)= (a^2+b^2-c^2)/(2ab)
this is helpful when solving equations to simply figure out the angle rather than having to solve the whole equation and then solving for the cos of the angle.
posted by Farooq at 10:51 PM
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