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Question 1
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The lines $px+qy=1$ and $qx+py=1$ are respectively the sides AB, AC of the triangle ABC and the base BC is bisected at $(p,q)$. Equation of the median of the triangle through the vertex A is
A.
$(2pq-1)(qx+py-1)-(p^2+q^2-1)(px+qy-1)=0$
B.
$(2pq-1)(px+qy-1)+(p^2+q^2-1)(qx+py-1)=0$
C.
$(2pq-1)(px+qy-1)-(p^2+q^2-1)(qx+py-1)=0$
D.
$(2pq-1)(qx+py-1)+(p^2+q^2-1)(px+qy-1)=0$
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