निम्न समान्तर रेखाओ के बीच कि दूरी ज्ञात कीजिए
` lx+my+n=0 ` तथा `a(lx+my)+n'=0`

The line lx+my+n=0 touches y^(2)=4ax

The area (in square units ) of the quadrilateral formed by two pairs of lines l^(2) x^(2) - m^(2) y^(2) - n (lx + my) = 0 and l^(2) x^(2)- m^(2) y^(2) + n (lx - my ) = 0 , is

The area (in square units ) of the quadrilateral formed by two pairs of lines l^(2) x^(2) - m^(2) y^(2) - n (lx + my) = 0 and l^(2) x^(2)- m^(2) y^(2) + n (lx - my ) = 0 , is

The area (in square units ) of the quadrilateral formed by two pairs of lines l^(2) x^(2) - m^(2) y^(2) - n (lx + my) = 0 and l^(2) x^(2)- m^(2) y^(2) + n (lx - my ) = 0 , is

The lines (lx+my)^2-3(mx-ly)^2=0 and lx+my+n=0 forms

The lines (lx+my)^2-3(mx-ly)^2=0 and lx+my+n=0 forms

The lines (lx+my)^2-3(mx-ly)^2=0 and lx+my+n=0 forms

The lines (lx+my)^2-3(mx-ly)^2=0 and lx+my+n=0 forms

The diagonals of the parallelogram whose sides are lx+my+n = 0 , lx+ my+ n',=0 , mx+ly+n=0 , mx+ly+n'=0 include an angle