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ABC is a right angled triangle right angled at A. If B(2,0,2) and C(0,-1,-1) are the two vertice and the equation to the locus of A isx^(2)+y^(2)+z^(2)+px+qy+rz+s =0 , " then " p+q+r+s is equal to |
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Answer» -1 |
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