किसी `Delta ABC` में सिध्द कीजिये कि:
` (sin 2A + sin 2B + sin 2C )/(sin A + sin B + sin C) = 8 sin .(A)/(2) sin .(B)/(2) sin .(C )/(2)`

(sin2A + sin2B + sin2C) / (sin A + sin B + sin C) = 8sin ((A) / (2)) sin ((B) / (2)) sin ((C) / (2))

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

Show that: sin A + sin B +sin C - sin(A+B+C)=4 sin ((A+B)/2)sin ((B+C)/2)sin ((C+A)/2)

In Delta ABC, if (sin A+sin B+sin C) (sin A+ sin B- sin C)=3 sin A sin B , then

If A, B, C are angles in a triangle , prove that sin A+ sin B -sin C =4sin. (A)/(2)sin. (B)/(2) cos. (C)/(2)

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

Theorem 1:sin2A+sin2B+sin2C=4sin A sin B sin C