Answer:
It was mainly due to the lack of knowledge on the type of attack that was launched against them. But also the advanced weaponry including the long swords that were used that were as strong and sharp as possible.
Step-by-step explanation:
This was due to the dedication the Spanish had to specialisation of different aspects like weaponry and the confusion that the Incas felt during this as a result of the surprise attack that was launched by the Spanish conquistadors.