If the lines `ax^2+2hxy+by^2=0` be two sides of a parallelogram and the line lx+my=1 be one of its diagonal, show that the equation of the other diagonal is y (bl-hm)=x(am-hl).

If the lines represented by 2x^2-5xy+2y^2=0 be the sides of a parallelogram and the line 5x+2y=1 be one of its diagonal. Find the equation of the other diagonal, and area of the parallelogram .

Two sides of a parallelogram are x+y+1=0&2x-y+2=0. One of its diagonal is 13x-2y-32=0 Equation of other diagonal is

If 2x^(2)+3xy-2y^(2)=0 represents two sides of a parallelgram and 3x+y+1=0 is one of its diagonals then the other diagonals is

Two sides of a parallelogram are along the lines x+y=3 and x-y+3=0 .If its diagonal intersect at (2,4) then one of its vertex is

Two sides of a parallelogram are along the lines x+y=3 and x=y+3. If its diagonals intersect at (2, 4) , then one of its vertices is

Two consecutive sides of a parallelogram are 4x+5y=0 and 7x+2y=0. If the equation of one diagonal is 11x=7y=9, find the equation of the other diagonal.

The two adjacent sides of parallelogram are y =0 and y=sqrt(3)(x-1) .If equation of one diagonal is sqrt(3)y=(x+1), then equation of other diagonal is

If the adjacent sides of a parallelogram are 2x^(2)5x+3y^(2)=0 and one diagonal is

If (-4,5) is a vertex of a square and one of its diagonal is 7x-y+8-0. Find the equation of other diagonal