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Q: Are all irrational numbers squared irrational?

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I don't knw all the possible numbers, but π is an example. π2 is irrational such as π.

No. Perfect squares as the squares of the integers, whereas irrational squares as the squares of irrational numbers, but some irrational numbers squared are whole numbers, eg √2 (an irrational number) squared is a whole number.

81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

81*81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

All irrational numbers are real, but not all real numbers are irrational.

No because 36 squared is 1296 which can be expressed as an improper fraction in the form of 1296/1 whereas irrational numbers can't be expressed as fractions.

All rational and irrational numbers are real numbers.

No. All irrational numbers are real, not all real numbers are irrational.

12 squared is not irrational. It's 144 .

Ye it is true that all irrational numbers are real numbers that can't be expressed as fractions.

No. Irrational numbers form a proper subset of real numbers. That means that all irrationals are real so non-reals cannot be irrational.

There are infiitelt many subsets of irrational numbers. One possible subset is the set of all positive irrational numbers.

All rational numbers can be expressed as fractions whereas irrational numbers can't be expressed as fractions.

All rational numbers can be expressed as fractions whereas irrational numbers can't be expressed as fractions.

20 squared is not an irrational number. 202 = 400.

All natural numbers are rational numbers. No irrational numbers are natural numbers.

No prime numbers are irrational: All prime numbers are integers, and all integers are rational, since they can be expressed as themselves divided by 1.

There are no two whole numbers which when squared sum to 62. There are infinitely may pairs of irrational numbers that when squared sum to 62, eg 1 and √61, 2 and √58

All irrational numbers are not rational.

No they are not. The numbers Pi and e are irrational and are not radicals. There are many others.

No irrational numbers are whole numbers,and all whole numbers are rational.

No, they are not. Sqrt(4) is not irrational.

Hardly. Since rational numbers are the exact opposite of irrational numbers, no number can be both.

There are no irrational integers because all whole numbers are rational numbers.

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.