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Infographics: Rational Numbers

Infographics: Rational Numbers

The document Infographics: Rational Numbers is a part of the Class 7 Course Mathematics (Maths) Class 7 (Old NCERT).
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FAQs on Infographics: Rational Numbers

1. What is the difference between rational and irrational numbers?
Ans. Rational numbers can be expressed as a fraction of two integers, while irrational numbers cannot be expressed as a simple fraction and have non-repeating, non-terminating decimal expansions.
2. Can you provide examples of rational and irrational numbers?
Ans. Examples of rational numbers include 3/4, -2, and 0.5. Examples of irrational numbers include square root of 2, pi (π), and Euler's number (e).
3. How can you determine if a number is rational or irrational?
Ans. A number can be determined to be rational if it can be expressed as a fraction of two integers. If a number cannot be expressed in this form and has a decimal expansion that does not repeat or terminate, it is considered irrational.
4. Are all square roots irrational numbers?
Ans. No, not all square roots are irrational numbers. For example, the square root of 4 is a rational number because it equals 2, which can be expressed as a fraction.
5. Why is it important to understand the distinction between rational and irrational numbers?
Ans. Understanding the difference between rational and irrational numbers is important in various mathematical concepts and applications, such as determining the nature of roots in algebraic equations or understanding the properties of real numbers.
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