what relationship existed in medieval Spain between Greek thought and Arab philosophy?

Answer 1

*obvious stooge question.

Yahoo Answers is, once again, the lowest common denominator.

Answer 2

There wasn't much of one.

The Muslims were not teaching anything Greek, though they had preserved some of their wisdom.

There were no Arabs in Spain, they were Moors. They were Muslims, but not Arabs.

So, neither of the things that you mentioned really existed much in Spanish philosophy.

When the Moors were pushed out of Spain, the nation became almost completely Catholic, that didn't add any Greek wisdom either. Catholicism likes to keep people in darkness so they will follow the blind rituals they have.