Ex 2.3, 2 - Find domain and range (i) f(x) = -|x| - Chapter 2

Ex 2.3, 2 - Chapter 2 Class 11 Relations and Functions - Part 2



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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]

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.