Question: Is there a real number x such that x^2 < 0? Answer: To explain, we need to define what we mean by "real number". If we define a real number as a num

Question: Is there a real number x such that x^2 < 0? Answer: To explain, we need to define what we mean by "real number". If we define a real number as a number that can be written as a fraction, then the answer is no. If we define a real number as a number that can be written as a decimal, then the answer is yes. If we define a real number as a number that can be written as a decimal, then the answer is yes. If we define a real number as a number that can be written as a fraction, then the answer is no. If we define a real number as a number that can be written as a fraction, then the answer is no. If we define a real number as a number that can be written as a decimal, then the answer is yes.