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Equation ax2+by2+cz2+2fyz+2gxz+2hxy+2ux+2vy+2wz+d=0 represents a sphere, if [MP PET 1990] |
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Answer» Equation ax2+by2+cz2+2fyz+2gxz+2hxy+2ux+2vy+2wz+d=0 represents a sphere, if |
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