"Bethany Glines" I am currently using Discovering Geometry, An Inductive Approach by Michael Serra, in my studies. I am however stumped on a question. On page 56 the question is:
Which number in the last group are Palis? (The question is also asked on page 45) The + sign is the box. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + 121 33 + 1,211 49 + + + 737 404 + 17 + 4,014 5,125 + + 40,204 11 + 7,373 366 + + + + 8,229 133 + 42,124 7,131 + ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Palis not Palis Which are Palis?
The book does not show how to find the answer. This is my only hope. I would appreciate if someone would respond and help me out. Thank you
Reply: Look at the Palis numbers. What do you notice about the first and last digits? Read the backwards and forwards. Do you notice something? What could "Palis" stand for? Look for words in the dictionary that start pali.... (hint: next letter is an n).