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Assertion A: In DeltaABC, sum(cos A)/(si...

Assertion A: In `DeltaABC, sum(cos A)/(sin B sin C)=2`
Reasin(R):In `DeltaABC, sin A +sinB+sin C=`
`4"cos"A/2"cos"B/2"cos"C/2`

A

A is true, R is true and R is correct explanation of A

B

A is true, R is true and R is not correct explanation of A

C

A is true, R is false

D

A is false, R is true.

Text Solution

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The correct Answer is:
B
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