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Earn +20 ptsQ: Do irrational numbers have the number 9?
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If a number is a real number then is it also an irrational number?
No. All irrational numbers are real, not all real numbers are irrational.
How many irrational numbers are there?
There are an infinite number of irrational numbers.
What will be the sum of a rational number and an irrational number?
It will be irrational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is every irrational number a real number and how?
The set of real numbers is defined as the union of all rational and irrational numbers. Thus, the irrational numbers are a subset of the real numbers. Therefore, BY DEFINITION, every irrational number is a real number.
If you add two irrational numbers do you get an irrational number?
Not necessarily. The sum of two irrational numbers can be rational or irrational.
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