फलन (f(x)=\sqrt{2x-x-2}+3) का परिसर क्या है?
What is the range of (f(x)=\sqrt{2x-x-2}+3)?
Explanation opens after your attempt
A. ( [3,4] )
Concept
Since (2x-x-2=1-(x-1)2), its value lies from (0) to (1). After square root and adding (3), the range is ([3,4]).
Why this answer is correct
The correct answer is A. ( [3,4] ). Since (2x-x-2=1-(x-1)2), its value lies from (0) to (1). After square root and adding (3), the range is ([3,4]).
Exam Tip
(2x-x-2=1-(x-1)2), जिसका मान (0) से (1) तक है। वर्गमूल के बाद (3) जोड़ने से परिसर ([3,4]) है।
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