`sin^(2)A+sin^(2)(A-B)-2sinA cosB sin(A-B)` का मान है

(sin^2A-sin^2B)/(sinA.cosA-sinB.cosB)=....

If A+B+C=pi, prove that sin^(2)A-sin^(2)B+sin^(2)C=2sinA cos B sinC

If (A+B + C) =90^@ , then what is the value of sin (A/2) sin[(180-B-C)//2] + cos(A/2) sin(B+C) //2 ? यदि (A+B + C) =90^@ है, तो sin (A/2) sin[(180-B-C)//2] + cos(A/2) sin(B+C) //2 का मान क्या है?

Prove that: sin(A+2B)sinA-sinBsin(2A+B)sinB=sin(A+B)sin(A-B)

Prove that: sin(A+2B)sinA-sinBsin(2A+B)sinB=sin(A+B)sin(A-B)

Prove the following : sin2A+sin2B+sin2(A-B) = 4sinA.cosB.cos(A-B)

If sin(A-B) =1//2 and cos(A+B)=1//2 , then what is the value of sinA cosA + sin^2A sinB cosB +cos^3 A cosB tanA यदि sin(A-B) =1//2 तथा cos(A+B)=1//2 ,का तो मान sinA cosA + sin^2A sinB cosB +cos^3 A cosB tanA क्या है?

If cos(A+B) = 0 and sin(A-B) = 1/2, then the value of B is: (Given 0^@ यदि cos(A+B) = 0 और sin(A-B) = 1/2, B का मान है:

Prove that: (sin(A+B)-2sinA+sin(A-B))/(cos(A+B)-2cosA+cos(A-B))= tanA

Prove that: (sin(A+B)-2sinA+sin(A-B))/(cos(A+B)-2cosA+cos(A-B))= tanA