1.

The pair of straight lines passes through the point (1, 2) and perpendicular to the pair of straight lines \[3{{x}^{2}}-8xy+5{{y}^{2}}=0\], is

A.            \[(5x+3y+11)(x+y+3)=0\]
B.            \[(5x+3y-11)(x+y-3)=0\]
C.            \[(3x+5y-11)(x+y+3)=0\]
D.            \[(3x-5y+11)(x+y-3)=0\]
Answer» C.            \[(3x+5y-11)(x+y+3)=0\]


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