[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Mathematics in Ancient and Medieval India](https://indike.org/pramana/ins.science.bag-1979) › c8.115 # Mathematics in Ancient and Medieval India c8.115 Mathematics in Ancient and Medieval India c8.115 - **Language:** English ### [c8.115](https://indike.org/pramana/ins.science.bag-1979.c8.115) ii) RSin A/2 = (R(Sin A/2+CosA/2)+R(Sin A/2-CosA/2))/2 - [Previous: c8.114](https://indike.org/pramana/ins.science.bag-1979.c8.114) - [Next: c8.116](https://indike.org/pramana/ins.science.bag-1979.c8.116) - [Up: c8](https://indike.org/pramana/ins.science.bag-1979.c8) --- Source: [https://indike.org/pramana/ins.science.bag-1979.c8.115](https://indike.org/pramana/ins.science.bag-1979.c8.115) · Pramāṇa