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Interactive video lesson plan for: Number system facts | Real numbers, Rational numbers and Irrational numbers

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Number system facts | Real numbers, rational numbers and Irrational numbers

http://www.learncbse.in/
http://www.learncbse.in/ncert-solutions-for-class-9-maths/
http://www.learncbse.in/rd-sharma-class-9th-solutions/

00:02 Q1. State whether the following statements are true or false. Justify your answers.
00:17 (i) Every irrational number is a real number.
00:25 Tree diagram of Types of numbers.
00:40 (ii) Every point on the number line is of the form sqrt(m) , where m is a natural number.
01:06 (iii) Every real number is an irrational number.
01:31 Explanation of Every real number is not an irrational number
01:54 Q2. Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number.
02:30 Example of the square root of a number that is a rational number.

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