Identify the correct statement-

  • A
    If the algebraic sum of lengths of perpendiculars drawn from $(4,2)$,$(2,4)$,and the origin to a variable line is zero,then the line necessarily passes through $(2,2)$.
  • B
    If $P$ is a point inside $\Delta ABC$ such that $Ar(\Delta PAB) + Ar(\Delta PBC) + Ar(\Delta PAC) = Ar(\Delta ABC)$,then $P$ is the orthocenter of $\Delta ABC$.
  • C
    $A$ pair of lines always bisects the angle between the corresponding angle bisector pair.
  • D
    The harmonic conjugate of the midpoint of two points $A$ and $B$ is either of the points.

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Let $A \equiv (0, 1)$,$B \equiv (2, 0)$,and point $P$ be a point on the line $4x + 3y + 9 = 0$. Find the coordinates of point $P$ such that $|PA - PB|$ is maximized.

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The portion of the line $4x + 5y = 20$ in the first quadrant is trisected by the lines $L_1$ and $L_2$ passing through the origin. The tangent of an angle between the lines $L_1$ and $L_2$ is:

The line $2x + 3y = 12$ meets the $x$-axis at $A$ and the $y$-axis at $B$. The line through $(5, 5)$ perpendicular to $AB$ meets the $x$-axis,$y$-axis,and the line $AB$ at $C, D, E$ respectively. If $O$ is the origin,then the area of the quadrilateral $OCEB$ is:

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