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The number of integral values of k for which the equation (k+1)x2+2(k−1)xy+y2−x+2y+3=0 represents an ellipse, is |
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Answer» The number of integral values of k for which the equation (k+1)x2+2(k−1)xy+y2−x+2y+3=0 represents an ellipse, is |
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