किस फलन का ग्राफ पहले और दूसरे चतुर्थांश में है लेकिन (x=0) पर परिभाषित नहीं है?
Which function has a graph in the first and second quadrants but is not defined at (x=0)?
Explanation opens after your attempt
Correct Answer
A. \(y=\frac{1}{x^2}\)
Concept
\(\frac{1}{x^2}>0\) for \(x\ne0\), so the graph stays above and is undefined at (x=0). In exams, remember positive branches on both sides when \(x^2\) is in the denominator.
Why this answer is correct
The correct answer is A. \(y=\frac{1}{x^2}\). \(\frac{1}{x^2}>0\) for \(x\ne0\), so the graph stays above and is undefined at (x=0). In exams, remember positive branches on both sides when \(x^2\) is in the denominator.
Exam Tip
\(\frac{1}{x^2}>0\) जब \(x\ne0\) इसलिए ग्राफ ऊपर रहता है और (x=0) पर परिभाषित नहीं। परीक्षा में हर में \(x^2\) होने पर दोनों ओर धनात्मक शाखाएं याद रखें।
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