यदि (f(x)=\frac{x+2}{x-2}), तो (f^{-1}(x)) क्या होगा?
If (f(x)=\frac{x+2}{x-2}), what is (f^{-1}(x))?
Explanation opens after your attempt
A. \(\frac{2x+2}{x-1}\)
Concept
Write \(y=\frac{x+2}{x-2}\).
Why this answer is correct
(y(x-2)=x+2), so (x(y-1)=2y+2) and \(x=\frac{2y+2}{y-1}\).
Exam Tip
Replace (y) by (x) at the end to get the inverse. चरण 1: \(y=\frac{x+2}{x-2}\) लिखें। चरण 2: (y(x-2)=x+2), इसलिए (x(y-1)=2y+2) और \(x=\frac{2y+2}{y-1}\)। चरण 3: अंत में (y) की जगह (x) लिखने से प्रतिलोम मिलता है।
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