If `sin2B=2sin B` then angle `B` equal to

In a triangle sin^(4)A + sin^(4)B + sin^(4)C = sin^(2)B sin^(2)C + 2sin^(2) C sin^(2)A + 2sin^(2)A sin^(2)B , then its angle A is equal to-

In a triangle sin^(4)A + sin^(4)B + sin^(4)C = sin^(2)B sin^(2)C + 2sin^(2) C sin^(2)A + 2sin^(2)A sin^(2)B , then its angle A is equal to-

If A and B are acute positive angles satisfying the equations 3sin^(2)A+2sin^(2)B=1 and 3sin2A-2sin 2B=0 , then A+2B is equal to

If A and B are acute positive angles satisfying the equations 3 sin^(2)A+2sin^(2) B=1 and 3 sin2A-2 sin 2B=0 , then A+2B is equal to

sin 2B = 2 sin B is true when B is equal to

If A+B=(pi)/(2) and sin A+sin B=1 then sin2A is equal to

In a triangle ABC, if a,b,c are in A.P and (b)/(c)sin2C+(c)/(b)sin2B+(b)/(a)sin2A+(a)/(b)sin2B=2 then the value of sin B equals

If sin A+cos B=a and sin B+cos A=b, then sin(A+B) is equal to