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velikii [3]
3 years ago
7

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

Mathematics
2 answers:
taurus [48]3 years ago
7 0
\bf a^2+b^2-(2ab)cos(C)=c^2\implies a^2+b^2-c^2=(2ab)cos(C)
Elina [12.6K]3 years ago
3 0

Answer:

We need a diagram please

Step-by-step explanation:

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