If the coordinates of the points A, B, C, D, be \[(a,\ b),\] \[({a}',\ {b}'),\] \[(-a,\ b)\] and \[({a}',\ -{b}')\] respectively, then the equation of the line bisecting the line segments AB and CD is

If the coordinates of the points A, B, C, D, be \[(a,\ b),\] \[({a}',\

1.	If the coordinates of the points A, B, C, D, be \[(a,\ b),\] \[({a}',\ {b}'),\] \[(-a,\ b)\] and \[({a}',\ -{b}')\] respectively, then the equation of the line bisecting the line segments AB and CD is
A.	\[2{a}'y-2bx=ab-{a}'{b}'\]
B.	\[2ay-2{b}'\ x=ab-{a}'{b}'\]
C.	\[2ay-2{b}'x={a}'b-a{b}'\]
D.	None of these
Answer» C. \[2ay-2{b}'x={a}'b-a{b}'\]

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If the coordinates of the points A, B, C, D, be \[(a,\ b),\] \[({a}',\ {b}'),\] \[(-a,\ b)\] and \[({a}',\ -{b}')\] respectively, then the equation of the line bisecting the line segments AB and CD is

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