an irrational number is any real number which cannot be expressed as a fraction a/b, where a and b are integers, with b non-zero, and is therefore not a rational number. Informally, this means that an irrational number cannot be represented as a simple fraction. â4 is irrational because it is not a negative number or a fraction.
Answers & Comments
Verified answer
√4 = +/- 2
Definitely NOT irrational
an irrational number is any real number which cannot be expressed as a fraction a/b, where a and b are integers, with b non-zero, and is therefore not a rational number. Informally, this means that an irrational number cannot be represented as a simple fraction. â4 is irrational because it is not a negative number or a fraction.