A,B,C are three angles of a triangle and `"sin" (A+c/2)= n "sin" C/2`
`("sin"C/2)/("cos"(A-B)/2)=`

A,B,C are three angles of a triangle and "sin" (A+c/2)= n "sin" C/2 "tan" A/2 "tan" B/2 =

If A, B, C are the angles of a triangle, then sin 2A + sin 2B - sin 2C is equal to

If A, B, C are the angles of a triangle, then sin 2A + sin 2B - sin 2C is equal to

If A,B,C are the three angles of a triangle,show that:(iii) sin((B+C)/2)=cos(A/2)

If A, B, C are the angles of a triangle such that sin^(2)A+sin^(2)B=sin^(2)C , then

If A, B, C are the angles of a triangle such that sin^(2)A+sin^(2)B=sin^(2)C , then

If A, B, C are the angles of a triangle such that sin^(2)A+sin^(2)B=sin^(2)C , then

If A, B, C are the angles in a triangle then prove that sin .(A)/(2)+ sin . (B)/(2)+ sin .(C)/(2) =1 +4 sin((pi-A)/(4)) sin ((pi-B)/(4)) sin((pi-C)/(4))