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Straight lines 3x+4y=5 and 4x-3y= 15 int...

Straight lines `3x+4y=5 and 4x-3y= 15` intersect at the point A. If point B and C are chosen on these two lines such that AB= AC, then the possible equation of the line BC passing through the point (1,2) is

A

`x+7y + 13=0 or 7x+ y+ 9=0`

B

`x+7y +13= 0 or 7x+ 2y + 7=0`

C

`x-7y+13= 0 or 7x+y -9=0`

D

None of these

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