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For a triangle ABC, which of the followi...

For a triangle ABC, which of the following is true?

A

cosA/a=cosB/b=cosC/c

B

`cosA/a+cosB/b+cosC/c=(a^2+b^2+c^2)/(2abc)`

C

`sinA/a+sinB/b+sinC/c=3/(2R`

D

`(sin2A)/a^2=(sin2B)/b^2=(sin2C)/c^2`

Text Solution

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The correct Answer is:
B, C
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