In `DeltaABC,(sin 2A+ sin 2B+ sin 2C)/(sin A + sin B+ sin C)= `

If A+B+C= pi and (sin 2 A + sin 2B + sin 2 C)/(sin A + sin B + sin C ) = lamda sin ((A)/(2)) sin ((B)/(2)) sin ((C )/(2)) , then the value of lamda must be

In any DeltaABC , sin A + sin B + sin C =

In any DeltaABC , sin A + sin B + sin C =

In a DeltaABC,R^(2) (sin 2A+sin 2B+sin 2C)=

In a DeltaABC,R^(2) (sin 2A+sin 2B+sin 2C)=

If A+B+C=0 , then prove that sin 2A + sin 2B+ sin 2C=-4sin A sin B sin C .

If A + B + C = pi , prove that sin 2A + sin 2B + sin 2C= 4 sin A sin B sin C

If A+B+C= 180^(@) , " then " ( sin 2A- sin 2B- sin 2C)/(sin 2B- sin 2A - sin 2C)=

If A + B + C = 180^(@) , prove that sin 2A + sin 2B + sin 2C = 4 sin A sin B sin C