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Class 10 Maths Chapter 1 Practice Question Answers - Real Numbers
FAQs on Class 10 Maths Chapter 1 Practice Question Answers - Real Numbers
| 1. What is a real number? |  |
Ans. A real number is a number that can be expressed as a finite or infinite decimal representation. It includes rational numbers (such as fractions and integers) and irrational numbers (such as square roots and pi).
| 2. How do real numbers differ from imaginary numbers? | |
Ans. Real numbers represent quantities that can be measured in the physical world, while imaginary numbers are used to represent quantities that cannot be measured physically. Real numbers are typically denoted by the symbol "R," while imaginary numbers are denoted by the symbol "i."
| 3. Can all real numbers be expressed as fractions? | |
Ans. No, not all real numbers can be expressed as fractions. Rational numbers are real numbers that can be expressed as fractions, but there are also real numbers called irrational numbers that cannot be written as fractions. Examples of irrational numbers include the square root of 2 and pi.
| 4. What is the difference between a real number and a whole number? | |
Ans. A real number is a number that can be expressed as a decimal representation, while a whole number is a non-negative integer (including zero). In other words, all whole numbers are real numbers, but not all real numbers are whole numbers.
| 5. Are negative numbers considered real numbers? | |
Ans. Yes, negative numbers are considered real numbers. Real numbers include both positive and negative numbers, as well as zero. So, any number that can be expressed as a decimal is a real number, regardless of its sign.
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