1 + pi, 1 - pi. Their sum is 2.
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No, they are complementary sets. No rational number is irrational and no irrational number is rational.Irrational means not rational.
When a rational numbers is divided by an irrational number, the answer is irrational for every non-zero rational number.
The set of real numbers is divided into rational and irrational numbers. The two subsets are disjoint and exhaustive. That is to say, there is no real number which is both rational and irrational. Also, any real number must be rational or irrational.
4.1010010001 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
0.151155111555(not repeating) is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.