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question_answer1) If the lines \[ax+by+c=0\], \[bx+cy+a=0\] and \[cx+ay+b=0\] be concurrent, then [IIT 1985; DCE 2000, 02]
question_answer2) The points \[(at_{1}^{2},2a{{t}_{1}}),(at_{2}^{2},2a{{t}_{2}})\]and \[(a,0)\]will be collinear, if
question_answer3) If the given lines \[y={{m}_{1}}x+{{c}_{1}},y={{m}_{2}}x+{{c}_{2}}\] and \[y={{m}_{3}}x+{{c}_{3}}\] be concurrent, then
question_answer4) The lines \[(p-q)x+(q-r)y+(r-p)=0\] \[(q-r)x+(r-p)y+(p-q)=0\] \[(r-p)x+(p-q)y+(q-r)=0\]are
question_answer5) Which of the following lines is concurrent with the lines \[3x+4y+6=0\]and \[6x+5y+9=0\]
question_answer6) The value of k for which the lines \[7x-8y+5=0\], \[3x-4y+5=0\] and \[4x+5y+k=0\] are concurrent is given by [MP PET 1993]
question_answer7) For what value of 'a' the lines \[x=3,y=4\] and \[4x-3y+a=0\] are concurrent [RPET 1984]
question_answer8) The lines \[15x-18y+1=0,\] \[12x+10y-3=0\] and \[6x+66y-11=0\] are [AMU 1978]
question_answer9) The straight lines \[x+2y-9=0,\] \[3x+5y-5=0\] and \[ax+by-1=0\] are concurrent, if the straight line \[35x-22y+1=0\] passes through the point
question_answer10) If the lines \[ax+y+1=0,x+by+1=0\] and \[x+y+c=0\] (a, b, c being distinct and different from 1) are concurrent, then \[\frac{1}{1-a}+\frac{1}{1-b}+\frac{1}{1-c}=\]
question_answer11) If the lines \[ax+2y+1=0,bx+3y+1=0\] and \[cx+4y+1=0\] are concurrent, then a, b, c are in
question_answer12) The lines \[2x+y-1=0,ax+3y-3=0\] and \[3x+2y-2=0\] are concurrent for [EAMCET 1994]
question_answer13) If lines \[4x+3y=1,y=x+5\] and \[5y+bx=3\] are concurrent, then b equals [RPET 1996; MP PET 1997; EAMCET 2003; Pb. CET 2002]
question_answer14) Three lines \[3x-y=2,\,\,5x+ay=3\] and \[2x+y=3\] are concurrent, then a = [MP PET 1996]
question_answer15) The three lines \[lx+my+n=0\], \[mx+ny+l=0\], \[nx+ly+m=0\] are concurrent if [Pb. CET 2002]
question_answer16) The straight lines \[4ax+3by+c=0\]where \[a+b+c=0\], will be concurrent, if point is [RPET 2002]
question_answer17) If the lines \[x+q=0,y-2=0\] and \[3x+2y+5=0\] are concurrent, then value of q will be [DCE 2002]
question_answer18) The value of \[\lambda \] for which the lines \[3x+4y=5,\] \[5x+4y=4\] and \[\lambda x+4y=6\] meet at a point is [Kerala (Engg.) 2002]
question_answer19) The three straight lines \[ax+by=c,\,\,bx+cy=a\] and \[cx+ay=b\] are collinear, if [MP PET 2004]
question_answer20) The solution of equations \[x+y=10,2x+y=18\] and \[4x-3y=26\] will be [DCE 2005]
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