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Which function has a graph in the first and second quadrants but is not defined at (x=0)?किस फलन का ग्राफ पहले और दूसरे चतुर्थांश में है लेकिन (x=0) पर परिभाषित नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (y=\frac{1}{x^2})(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.(\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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