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In a rhombus ABCD the diagonals AC and B...

In a rhombus ABCD the diagonals AC and BD intersect at the point (3, 4). If the point A is (1, 2) the diagonal BD has the equation

A

`x-y-1=0`

B

`x+y-1=0`

C

`x-y+1=0`

D

`x+y-7=0`

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The correct Answer is:
D
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