Скачать или смотреть ex 1.5 q5 rationalise the denominator 1/√7-2

ex 1.5 q5 rationalise the denominator 1/√7-2
Class 9th mathematics Chapter Number System Find six rational numbers between 3 and 4 Class 9th mathematics Chapter Number System 1/39 Class 9th Mathematics NUMBER SYSTEM In class 8th we studied rational numbers and in previous than 8th class we learnt natural numbers, whole numbers and integers. In 9th class we are going to learn about real numbers: rational and irrational numbers. In this chapter we will learn: 1. Rational numbers and numbers between two rational numbers. 2. Irrational numbers. 3. To locate rational and irrational numbers on number line. 4. Real numbers and their decimal expansion: terminating, non-terminating repeating and non-terminating non-repeating decimal expansion. 5. Expressing numbers in p/q form. 6. Rationalization of denominator. 7. Classification of rational and irrational numbers. 8. Laws of exponents and real numbers. 9. Simplify exponential form of numbers.