Q. Consider the following works produced in medieval India:

1. Lilavati
2. Tantrasamgraha
3. Navankura

Which of these work is / are related to Mathematics?
Answer: 1, 2 & 3
Notes: All three, Lilavati, Tantrasamgraha and Navankura are notable works related to Mathematics produced in medieval India. Ganitakaumudi and Bijaganitavatamsa, Lilavati Karamdipika, Suddhantadipika and Lilavati Vyakhya, Buddhivilasini, and Navankura on Bhaskara-II's Bijaganit are all treatises giving rules for trigonometrical terms like sine, cosine, tangent, etc. Tantrasamgraha contains rules of trigonometrical functions. Tajik was compiled with a number of Persian technical terms. All these notable works contribute to the advancement of mathematics during the period.