9th and 10th Days of Year: 09.01.20 and 10.01.20

References:

• Inder J. Taneja, 2020 In Numbers: Mathematical Style – Revised, Zenodo, December 31, 2019, pp. 1-37,  http://doi.org/10.5281/zenodo.3596193.
• Inder J. Taneja, Multiple-Type Pythagorean Triples, https://inderjtaneja.com/2018/08/04/2499/
• Inder J. Taneja, Same Digits Equality Expressions, https://inderjtaneja.com/2017/02/23/same-digits-equality-expressions/