Question

sin2A+sin2B+2sinAsinB cos(A+B) =sin2(A+B). prove that​

Answer 1

Step-by-step explanation:

sin2A+sin(A-B)[ sinAcosB-cosAsinB-2sinAcosB] ... 193.1 K. 4: 37. `sin A sin (A+ 2B) –sin B sin (2A +B. play. 96579801 ... Prove that `a^(2) sin 2B + b^(2). play.