Simple But Elegant Way To Prove That sin(A+B)=sinAcosB+cosAsinB (Edexcel Proof Simplified)

Learn why sin(A+B)=sinAcosB+cosAsinB with this elegant proof… Like this proof? Why not check out this page… How to prove that sin(A-B)=sin(A)cos(B)-cos(A)sin(B) geometrically Other posts you may be interested in… Trigonometric Proofs FREE MATHS VIDEOS – FOR A LEVEL & GCSE STUDENTS Vector Proof (1) If f(x)=sinx, f'(x)=cosx Proof Proving that arg(z_1/z_2)=arg(z_1)-arg(z_2) How To Multiply Surds … Continue reading Simple But Elegant Way To Prove That sin(A+B)=sinAcosB+cosAsinB (Edexcel Proof Simplified)