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For (x\ne1), the graph of (f(x)=\frac{x^2-1}{x-1}) is like which line?फलन (f(x)=\frac{x^2-1}{x-1}) का ग्राफ (x\ne1) पर किस रेखा जैसा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (y=x+1)(y=x+1)
(\frac{x^2-1}{x-1}=\frac{(x-1)(x+1)}{x-1}=x+1), but (x=1) is excluded. Do not forget the hole in such graphs.(\frac{x^2-1}{x-1}=\frac{(x-1)(x+1)}{x-1}=x+1), लेकिन (x=1) हटता है। ऐसे ग्राफ में छेद को न भूलें।
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