You are here
Ex 2.3, 2 (i) - Chapter 2 Class 11 Relations and Functions
Last updated at April 16, 2024 by Teachoo
Finding Domain and Range - General Method
Chapter 2 Class 11 Relations and Functions
Concept wise
- Finding Cartesian Product
- Equality of 2 ordered pairs
- Number of elements
- Operations on sets+ cartesian product
- Relations - Definition
- Finding Relation - Set-builder form given
- Finding Relation - Arrow Depiction given
- Number of Relations
- Functions - Definition
- Finding values at certain points
- Different Functions and their graphs
- Finding Domain and Range - By drawing graphs
-
Finding Domain and Range - General Method
- Algebra of real functions
Transcript
Ex 2.3, 2 Find the domain and range of the following real function: f(x) = –|x| Here we are given a real function Hence, both domain and range should be real numbers Here, x can be any real number Here, f(x) will always be negative or zero. All these are real values Here value of domain (x) can be any real number Hence, Domain = R (All real numbers) We note that that Range f(x) is 0 or negative numbers, Hence, Range = (−∞, 0]
