Chapter 1 Class 9 Number Systems
Ex 1.1, 4 (i) Important
Ex 1.2, 1 (i)
Ex 1.2, 3 Important
Example 7 Important You are here
Example 9 Important
Example 10 Important
Ex 1.3, 3 (i)
Ex 1.3, 8 Important
Ex 1.3, 9 (i)
Example 15 (i) Important
Example 18
Ex 1.4, 1 (i)
Ex 1.4, 2 (i) Important
Ex 1.4, 4
Ex 1.4, 5 (i)
Example 20 (i)
Ex 1.5, 1 (i)
Ex 1.5, 2 (i) Important
Ex 1.5, 3 (i) Important
Chapter 1 Class 9 Number Systems
Last updated at April 16, 2024 by Teachoo
Example 7 Show that 0.3333 = 0.3 can be expressed in the form / , where p and q are integers and q 0. Let x = 0.3333 .. Multiplying equation (1) with 10 10x = 10 (0.333 ) 10x = 3.333 Subtracting (2) from (1) i.e. (2) (1) 10x x = 3.3333 0.3333 9x = 3 x = 3/9 x = 1/3 Thus, 0.3333 = 1/3