Value of `2sin^2 a + 2sin^2 b + (2sina) (2sinb) cos(a + b)` is-

2sin^2b+4cos(a+b)sina" " sinb+cos2(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 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/2 , show that : sin^2 A + sin^2 B + sin^2 C=1-2 sinA sinB sinC

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

Prove that sin2A + sin2B + sin2C = 4sinA · sinB · sin C

Prove that sin2A + sin2B + sin2C = 4sinA · sinB · sin C

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

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

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