If a straight line makes angle `a,b,c` with co ordinate axes respectively,then `sin^2 a+sin^2 b+sin^2 c=`

In a right angled triangle ABC, write the value of sin^2 A + sin^2 B+ sin^2C

If alpha,beta,a n dgamma are the an gles which a directed line makes with the positive directions of the co-ordinates axes, then find the value of sin^2alpha+sin^2beta+sin^2gammadot

If alpha,beta,a n dgamma are the an gles which a directed line makes with the positive directions of the co-ordinates axes, then find the value of sin^2alpha+sin^2beta+sin^2gammadot

If alpha,beta,gamma are the angle which a half ray makes with the positive direction of the axes then sin^2alpha+sin^2beta+sin^2gamma= (A) 1 (B) 2 (C) 0 (D) -1

If A+B+C=pi then sin2A+sin2B+sin2C=

In a right angled triangle ABC sin^(2)A+sin^(2)B+sin^(2)C=

If A, B, C are the angles of a triangle, then the determinant Delta = |(sin 2 A,sin C,sin B),(sin C,sin 2B,sin A),(sin B,sin A,sin 2 C)| is equal to

If sides a , b , c of the triangle A B C are in AdotPdot , then prove that sin^2A/2cos e c\ 2A ;sin^2B/2cos e c\ 2B\ ;sin^2C/2cos e c\ 2C are in H.P.

If the angles A, B and C of a triangle are in an arithmetic progression and if a, b and c denote the lengths of the sides opposite to A, B and C respectively, then the value of the expression (a)/(c) sin 2C + (c)/(a) sin 2A is

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