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If A(7,9),B(3,−7) and C(−3,3) are the vertices of a triangle and S(α,β),O(l,m) are its circumcentre and orthocentre respectively, then the square of the distance between P(m,α) and Q(β,l) is |
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Answer» If A(7,9),B(3,−7) and C(−3,3) are the vertices of a triangle and S(α,β),O(l,m) are its circumcentre and orthocentre respectively, then the square of the distance between P(m,α) and Q(β,l) is |
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