caitlindeland
caitlindeland caitlindeland
  • 17-10-2016
  • Mathematics
contestada

the law of cosine is A squared + B squared -2abcosC. find he value of 2abcosC 

Side a is 2. Side b is 4. Side c is 5

A.37
B.20
C.40
D.-40

Respuesta :

egramlick
egramlick egramlick
  • 17-10-2016
d I think but not 100% sure
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