If `4a^2+9b^2-c^2+12ab= 0` then the family of straight lines `ax + by +c=0` is concurrent at : (A) `(-3,2) or (2,3)` (B) `(-2,3) or (2,-3)` (C) `(3,2) or (-3,-2)` (D) `(2,3) or (-2,-3)`

If a^2+b^2-c^2-2ab = 0 , then the family of straight lines ax + by + c = 0

If 25a^2 + 16b^2 – 40ab – c^2 = 0 , then the family of straight line 2ax + by + c = 0 is concurrent at

If a^(2)+9b^(2)-4c^(2)=6ab, then the family of lines ax+by+c=0 are concurrent at:

If 4a^(2)+9b^(2)-c^(2)-12ab=0 then family of straight lines ax+by+c=0 are concurrent at P and Q then values of P & Q are

If 6a^2-3b^2-c^2+7ab-ac+4bc=0 then the family of lines ax+by+c=0,|a|+|b| != 0 can be concurrent at concurrent (A) (-2,3) (B) (3,-1) (C) (2,3) (D) (-3,1)

The set of lines ax+by+c=0, where 3a+2b+4c=0, is concurrent at the point:

The set of lines ax+by+c=0 , where 3a+2b+4c=0 is concurrent at the point…

If the straight lines x+y-2-0,2x-y+1=0 and a x+b y-c=0 are concurrent, then the family of lines 2a x+3b y+c=0(a , b , c) are nonzero) is concurrent at (a) (2,3) (b) (1/2,1/3) (c) (-1/6,-5/9) (d) (2/3,-7/5)

If a+b+c=0 , then the family of lines 3a x+b y+2c=0 pass through fixed point a. (2,2/3) b. (2/3,2) c. (-2,2/3) d. none of these