Respuesta :
Answer:
Double-angle or half-angle identity used is
sin2x= 2 sinx cosx
Step-by-step explanation:
We have to find [tex]\frac{sin2x}{2sin^2x}[/tex]
sin2x= 2 sinx cosx
Substituting
[tex]\frac{sin2x}{2sin^2x}=\frac{2sinxcosx}{2sin^2x}=\frac{cosx}{sinx}=cotx[/tex]
Double-angle or half-angle identity used is
sin2x= 2 sinx cosx