dasani123
01-10-2006, 08:11 PM
I recently had an exam where the last question was as follows:
-1 = i*i = sqrt(-1)*sqrt(-1) = sqrt(-1*-1) = sqrt(1) = 1
Does -1 = 1?
This was an engineering exam and was obviously just a gimme question, but i can't find any fault in the reasoning.
-1 = i*i = sqrt(-1)*sqrt(-1) = sqrt(-1*-1) = sqrt(1) = 1
Does -1 = 1?
This was an engineering exam and was obviously just a gimme question, but i can't find any fault in the reasoning.