The condition of representing the coincident lines by the general quadratic equation `f(x,y)=0` , is

If the equation 4x^2+hxy+y^2=0 represent coincident lines, then h is equal to

If the equation 4x^2+hxy+y^2=0 represent coincident lines, then h is equal to

The equation x^(2)+ky^(2)+4xy=0 represents two coincident lines if k=

The equation x^(2)+ky^(2)+4xy=0 represents two coincident lines if k=

Solve each of the following quadratic quadratic equations by comparing its roots with the roots of the general quadratic equation: 2x^2-7ix+4=0

Check whether the given pair of equations represent intersecting, parallel or coincident lines. Find the solution if the equations are consistent. 2x + y - 5 = 0 3x - 2y - 4 = 0

Check whether the given pair of equations represent intersecting, parallel or coincident lines. Find the solution if the equations are consistent. 2x+y-5=0,3x-2y-4=0

The condition that one of the straight lines given by the equation ax^(2)+2hxy+by^(2)=0 may coincide with one of those given by the equation a'x^(2)+2h'xy+b'y^(2)=0 is

The condition that one of the straight lines given by the equation ax^(2)+2hxy+by^(2)=0 may coincide with one of those given by the equation a'x^(2)+2h'xy+b'y^(2)=0 is