Tangents to Circle

[hubbyn]

Could anyone be willing to help me to solve this problem? Million thanks.
The circles meet at P, Q. PCD, AQB and CKB are straight lines.


Prove that CK || DA

 

[tkhunny]

1) It would help if your drawing was complete. Where is B?
2) It would help if we knew the relationship we were to prove. The logical operator seems to be missing.
3) Please show YOUR work and we can help you on your way.