I want to know the answer to the following question:
What were the trigonometric functions that Aryabhata discovered?
All the background I'm provided with is that "Indian astronomer and mathematician Aryabhata (476-550), in his Aryabhatiya (499) introduced a number of trigonometric functions (including sine, versine, cosine and inverse sine), trigonometric tables, and techniques and algorithms of algebra.". Is that enough to answer the question?