Respuesta :

jcherry99
Remark
You need to start with three facts.
x and y are complements which means that x + y = 90
Sin(x) = cos(90 - x) 
<CPN = <DPN   Definition of a bisector.

From the 3 facts above, we can gather than 
CPN + y = 90
Therefore the cos of CPN = Sin(y)

Answer: Sin BPD = Cos x, and Cos CPN = sin y

Step-by-step explanation: