यदि (f(x)=\frac{3}{x-2-2x+2}+1), तो (f) का परिसर क्या है?
If (f(x)=\frac{3}{x-2-2x+2}+1), what is the range of (f)?
Explanation opens after your attempt
A. ((1,4])
Concept
\(The denominator (x^2-2x+2=(x-1)^2+1\ge 1), so (\frac{3}{\)denominator\(}\in(0,3]). Hence the range is ((1,4]).\)
Why this answer is correct
\(The correct answer is A. ((1,4]). The denominator (x^2-2x+2=(x-1)^2+1\ge 1), so (\frac{3}{\)denominator\(}\in(0,3]). Hence the range is ((1,4]).\)
Exam Tip
\(हर (x^2-2x+2=(x-1)^2+1\ge 1), इसलिए (\frac{3}{\)हर}\in(0,3])। इसलिए परिसर ((1,4]) है।
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