3 years ago

Cos A+cosB+CosC=1+4sinA/2sinB/2sinC/2

Mathematics

1 answer:

Scrat [10]3 years ago

5 0

Socratic use det app

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Cos A+cosB+CosC=1+4sinA/2*sinB/2*sinC/2

Cos A+cosB+CosC=1+4sinA/2sinB/2sinC/2