यदि \(A=\{-4,-2,1\}\), \(f:A\to\mathbb{R}\), और (f(x)=x-2+2x) है, तो रेंज क्या है?
If \(A=\{-4,-2,1\}\), \(f:A\to\mathbb{R}\), and (f(x)=x-2+2x), what is the range?
Explanation opens after your attempt
A. ({0,3,8})
Concept
(f(-4)=8), (f(-2)=0), and (f(1)=3). In exams find the image of every input in a finite domain.
Why this answer is correct
The correct answer is A. ({0,3,8}). (f(-4)=8), (f(-2)=0), and (f(1)=3). In exams find the image of every input in a finite domain.
Exam Tip
(f(-4)=8), (f(-2)=0), और (f(1)=3) हैं। परीक्षा में finite domain में हर input की image निकालें।
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