I do not think this error was intentional.
You may be right. The solution answer of one (1) was so obviously wrong it seemed intentional. I just dropped it into WAT’s box of Wrong Answers with Work Product and incremented the counter.
WAT’s usual fair is to plop the name of a theorem or formula, which may or may not (usually not) relate to the math in the question, followed by a simple answer. Here’s a recent example:
By Cauchy-Schwarz, the maximum value is 1/n^2.
WAT didn’t start his trolling with “name dropping,” he just plopped wrong answers. Lately, he’s morphed into giving work product, but he has yet to “name drop” when he does this –probably because the solution methods do not have an associated name or the name is obvious, such as the Pythagorean Theorem.
This is a fascinating case study and a recreational diversion from weightier responsibilities. 
GA
