b sinB - c sinC = a sin(B-C)

(sin(A - B))/(sin A sin B) + (sin(B - C))/(sin B sin C) + (sin (C - A))/(sin C sin A)=0

If A+B+C=pi , prove that : sin (B+C-A) + sin (C+A-B) + sin (A+B-C)=4sinA sinB sinC

If A+B+C= pi/2 , show that : sin^2 A + sin^2 B + sin^2 C=1-2 sinA sinB sinC

If A+B+C=pi , prove that : (sin 2A+sin 2B + sin 2C)/(sinA+sinB+sinC) = 8 sin(A/2) sin(B/2) sin(C/2)

In Delta ABC, if (Sin A + SinB + SinC) (SinA + SinB - SinC) = 3SinA SinB then C =

If A+B+C = pi and A, B, C are angle of /_\ ; then show sinA + sinB + sinC < (3 sqrt(3))/2 .

If A+B+C=pi , prove that : cosA sinB sinC +cosB sinC sinA+cosC sinA sinB=1+cosA cosB cosC .

If A+B+C=pi and A+B=2C , prove that : 4 (sin^2 A + sin^2 B - sinA sinB)=3 .

Statement I: If sinA=sinB , cosA=cosB then A= 2np + B Statement II :If A+B+C=90^@ then sin2A+sin2B + sin2C = 4 sinA sinB sinC Which of the above statements is correct?

If A,B,C, are the angles of a triangle such that cot(A/2)=3tan(C/2), then sinA ,sinB ,sinC are in (a)AdotPdot (b) GdotPdot (c) HdotPdot (d) none of these