Correction on Cosmos edition 2013 Ballantine Books

I’ve found that my copy of the book Cosmos by Carl Sagan, ISBN 9780345539434 (2013 Ballantine Books Trade Paperback Edition) is missing several square root symbols on Appendix 1, pages 370 and 371 which make following the proof a bit confusing. See images below. Hope this helps.

typo en Cosmos pag 371

typo en Cosmos pag 378

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