Question

Sin (a-b)÷sin (a+b)=tan a-tan a-tan b÷tan a+tan b

Answer 1

Answer:

ĀNSWĒR ✍

TanA+Tan B /Tan A-Tan B =sin(A+B)/sin(A-B)

=(sinA/cosA+sinB/cosB)/sinA/cosA-sinB-/CosB

=(SinACosB+SinBCosA/cosAcosB)/SinAcosB-sinA cosA/cosA cosB =

=sinAcosB+Sin B cosA/sinA cos B -sinA cosB

= sin(A+B)/sin(A-B)R.H.S

hence proved

L.H.S = R.H.S

THANKS ❤^_^