Find the straight lines represented by the following equations and also deterbetween them. `x^2 + 2xy sec theta + y^2 = 0`

The straight lines represented by the equation 9x^(2)-12xy+4y^(2)=0 are

The straight lines represented by the equation 9x^(2)-12xy+4y^(2)=0 are

Find the equation of the lines represented by the following equation 2x^2 -5xy - 3y^2 = 0

Find the separate equations of the lines represented by the following equations 6x^(2)-5xy-6y^(2)=0

Find the separate equation of the lines represented by the following equations : (1) 3x^(2) - 10 xy - 8y^(2) = 0 (2) x^(2) + 2xy - y^(2) = 0 .

Find the separate equation of lines represented by the equation x^2-6xy+8y^2=0