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Chapter 1 Class 9 Number Systems
Ex 1.1, 4 (i) Important
Ex 1.2, 1 (i)
Ex 1.2, 3 Important You are here
Example 7 Important
Example 9 Important
Example 10 Important
Ex 1.3, 3 (i)
Ex 1.3, 8 Important
Ex 1.3, 9 (i)
Example 16 (i) Important
Example 19
Ex 1.5, 1 (i)
Ex 1.5, 2 (i) Important
Ex 1.5, 4
Ex 1.5, 5 (i)
Example 21 (i)
Ex 1.6, 1 (i)
Ex 1.6, 2 (i) Important
Ex 1.6, 3 (i) Important
Chapter 1 Class 9 Number Systems
Last updated at Oct. 5, 2020 by Teachoo
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βπ on the Number line Represent βπ on Number Line Letβs draw the number line Hence, point P is βπ Using Pythagoras Theorem OB2 = OA2 + AB2 OB2 = 22 + 12 OB2 = 4 + 1 OB = β5 Ex1.2,3 Locate β5 on the number line For drawing β5 we consider Pythagoras theorem. Using Pythagoras theorem Hypotenuse2 = Base2 + Height2 Hypotenuse = β("Base2 + Height2" ) Hypotenuse = β(2^2+1^2 ) Hypotenuse = β(4+1) Hypotenuse = β5 Point P is the point of β5