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If 6a^2-3b^2-c^2+7ab-ac+4bc=0, then the ...

If `6a^2-3b^2-c^2+7ab-ac+4bc=0`, then the family of lines ax+by+c=0 is concurrent at

A

(-2,-3)

B

(3,-1)

C

(2,3)

D

(-3,1)

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The correct Answer is:
A, B
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PATHFINDER-CARTESIAN COORDINATES AND STRAIGHT LINE-QUESTION BANK
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  11. Let f1(x,y)-=ax^2+2hxy+by^2=0 and let f(i+1)=0 denotes the equation of...

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  14. Match the List I with List II and select the correct option.

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