PAIR OF STRAIGHT LINE | HOMOGENEOUS SECOND DEGREE EQUATION, COMBINED EQUATION OF PAIR OF LINES, QUESTIONS | Bisector of angle between the pair of lines, Combined equation of pair of lines joining origin and intersection of a curve and line, Find the lines whose combined equation is `6x^2+5xy-4y^2+7x+13y-3=0`, Find the value of `Lambda` if `2x^2+7xy+3y^2+8x+14y+lambda=0` represent a pair of straight lines., If the pair of straight lines `ax^2+2hxy+by^2=0` is rotated about the origin `90^@`; then find the eqution in the new position ., If the sum of the slopes of the lines given by `x^2-2cxy+7y^2=0` is 4 times their product; then find the value of c ?, Prove that the angle between the lines joining the origin to the points of intersection of straight line `y=3x+2` with the curve `x^2+2xy+3y^2+4x+8y-11=0` is `tan^(-1)((2sqrt2)/3)`