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Introduction: Real Numbers Video Lecture | Mathematics (Maths) Class 10
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FAQs on Introduction: Real Numbers Video Lecture - Mathematics (Maths) Class 10
| 1. What are real numbers? |  |
| 2. How are real numbers different from rational numbers? | |
Ans. Real numbers include both rational and irrational numbers, while rational numbers are a subset of real numbers. Rational numbers can be expressed as fractions or terminating or repeating decimals, whereas real numbers include all possible numbers on the number line.
| 3. What are examples of real numbers? | |
Ans. Examples of real numbers include integers (-3, 0, 5), fractions (1/2, 3/4), decimals (1.25, 3.6), square roots of non-perfect squares (√2, √5), and irrational numbers such as π and e.
| 4. How do you identify if a number is a real number? | |
Ans. All numbers that can be represented on the number line are real numbers. If a number can be written as a fraction, terminating or repeating decimal, or an irrational number, then it is a real number.
| 5. Are all real numbers also whole numbers? | |
Ans. No, not all real numbers are whole numbers. Whole numbers are a subset of real numbers that include positive integers (0, 1, 2, 3, ...) and zero. Real numbers also include fractions, decimals, and irrational numbers, which are not considered whole numbers.
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