If tan A and tan B are the roots of `abx^2-c^2x + ab =0` where a, b, c are the sides of the triangle ABC then the value of `sin^2A + sin^2B + sin^2C` is

IF tan A and tan B are the roots of abx^2 - c^2 +ab =0 where a,b,c are the sides of the triangle ABC then the value of sin ^2 + sin ^2 B + sin ^2 C is

If tan A and tan B are the roots of abx^2- c^2x + ab= 0 , where a, b, c are the sides of the tnangle ABC, then the value of sin^2 A + sin^2 B + sin^2 C is :

IF tan A and tan B are the roots of abx^2-c^2x+ab=0 where a,b,c are the sides of triangleABC then find sin^2A+sin^2B+sin^2C

If tanA, tanB are the roots of the quadratic abx^2-c^2x+ab=0, where a,b,c are the sides of a triangle. then

In any triangle ABC, the value of (b^(2)sin 2C + c^(2) sin 2B) is-