if `X^2/a+y^2/b+(2xy)/h=0` represent pair of straight lies and slope one line is twice the other line then `ab:h^2`.

a(x^(2)-y^(2))+xy=0 represents a pair of straight lines for

a(x^(2)-y^(2))+xy=0 represents a pair of straight lines for

If ax^(2) + 2hxy + by^(2) = 0 represents two straight lines such that slope of one line is twice the slope of the other, prove that 8h^(2) = 9ab.

If ax^(2)+2hxy+by^(2)=0 represents two straight lines such that slope of one line is twice the slope of the other, prove that 8h^(2)=9ab.

a^(2)x^(2)+2xy+9y^(2)=0 represent a pair of distinct lines then 'a' lies in

6x^(2)+hxy+12y^(2)=0 represents pair of parallel straight lines, if h is

6x^(2)+hxy+12y^(2)=0 represents pair of parallel straight lines, if h is