Class 9 Maths Chapter 1 Exercise-1.4 Solutions
Class 9 Maths Chapter 1 Exercise-1.4 Solutions gives you access to the answers to all the questions given in the Exercise-1.4 of chapter Number Systems. This exercise includes questions related to the fact that if we add, subtract, multiply and divide a rational and irrational number then the resultant number is an irrational number also if we add, subtract, multiply and divide two irrational numbers then the resultant number can be a rational or irrational number. In addition to all these, you will also find questions where you have to rationalise the denominator of an irrational number.
1. Classify the following numbers as rational or irrational:
2. Simplify each of the following expressions:
3. Recall, ∏ is defined as ratio of the circumferences (say c) of a circle to its diameter (say d). That is, ∏ = c/d. This seems to contradict the fact that ∏ is irrational. How will you resolve this contradiction?
4. Reprsent √9.3 on the number line.
5. Rationalise the denominators of the following:
