Math, asked by giribabugiri06, 4 months ago

prove that cos^2A/2+cos^2B/2+cos^2C/2=2(1+sinA/2.sinB/2.sinC/2)

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Answered by irfanalisk02

1

Step-by-step explanation:

prove that cos^2A/2+cos^2B/2+cos^2C/2=2(1+sinA/2.sinB/2.sinC/2)

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