modern mathematical systems spread outward from india via\nconquest\nmigration\nreligious missionaries.\ntrad…

Brief Explanations:

Modern mathematical systems, such as the Hindu - Arabic numeral system, spread from India via trade routes. Traders carried not only goods but also knowledge and mathematical concepts. Conquest and migration were not the primary means for the spread of these mathematical systems. Religious missionaries mainly spread religious beliefs rather than mathematical systems.

Answer:

trade routes.