फलन (f(x)=\frac{4}{x-2+5}-1) की रेंज क्या है?
What is the range of (f(x)=\frac{4}{x-2+5}-1)?
Explanation opens after your attempt
A. (\(-1,-\frac{1}{5}]\)
Concept
The range of \(\frac{4}{x^2+5}\) is ( \(0,\frac{4}{5}]\). Adding (-1) gives (\(-1,-\frac{1}{5}]\).
Why this answer is correct
The correct answer is A. (\(-1,-\frac{1}{5}]\). The range of \(\frac{4}{x^2+5}\) is ( \(0,\frac{4}{5}]\). Adding (-1) gives (\(-1,-\frac{1}{5}]\).
Exam Tip
\(\frac{4}{x^2+5}\) की रेंज ( \(0,\frac{4}{5}]\) है। इसमें (-1) जोड़ने पर (\(-1,-\frac{1}{5}]\) मिलता है।
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