Q. Is 8 an irrational number?Choices:(A) yes(B) no
Understand irrational numbers: Understand what an irrational number is. An irrational number is a number that cannot be expressed as a simple fraction - that is, the ratio of two integers. It is a number that has a non-repeating, non-terminating decimal expansion.
Simplify 8: Express 8 in its simplest radical form.8 can be simplified by recognizing that 8 is 4 times 2, and 4 is a perfect square. Therefore, 8=4×2=4×2=2×2.
Determine 2: Determine if 2 is an irrational number.2 is known to be an irrational number because it cannot be expressed as a fraction of two integers. Its decimal expansion is non-repeating and non-terminating.
Conclude 8: Conclude whether 8 is an irrational number.Since 8 simplifies to 2×2 and we know that 2 is irrational, the product of a rational number (2) and an irrational number (2) is also irrational. Therefore, 8 is an irrational number.
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