shakirabreeding
shakirabreeding shakirabreeding
  • 02-04-2018
  • Mathematics
contestada

The law of cosines a2+b2-2abcosC=c2. Find the value of 2abcosC.

The law of cosines a2b22abcosCc2 Find the value of 2abcosC class=

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sqdancefan
sqdancefan sqdancefan
  • 02-04-2018
2ab·cos(C) = a² +b² -c²
.. = 4² +3² -2²
.. = 16 +9 -4
.. = 21 . . . . . . . matches selection B
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drrpepper
drrpepper drrpepper
  • 26-10-2020

Answer:

b 21

Step-by-step explanation:

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