[" Consider a pair of perpendicular straight lines "ax^(2)+3xy-2y^(2)-],[5x+5y+c=0]

Consider a pair of perpendicular straight lines 2x^2+3xy+by^2-11x+13y+c=0 The value fo c is

Consider a pair of perpendicular straight lines 2x^2+3xy+by^2-11x+13y+c=0 The value fo c is

Consider a pair of perpendicular straight lines 2x^2+3xy+by^2-11x+13y+c=0 The value fo c is

Consider a pair of perpendicular straight lines 2x^2+3xy+by-11x+13y+c=0 The value of |b+2c|is

The point of intersection of the perpendiecular lines ax^(2)+3xy-2y^(2)-5x+5y+c=0 is

Consider the equation of a pair of straight lines as 2x^(2)-10xy+12y^(2)+5x-16y-3=0 . The angles between the lines is theta . Then the value of tan theta is

Consider the equation of a pair of straight lines as 2x^(2)-10xy+12y^(2)+5x-16y-3=0 . The angles between the lines is theta . Then the value of tan theta is

Combined equation of lines perpendicular to 5x^(2)+3xy-2y^(2)=0 is

Fouation of the pair of straight lines through origin and perpendicular to the pair of straight lines 5x^(2)-7xy-3y^(2)=0 is

The equation on the pair of straight lines through the point (1, 1) and perpendicular to the pair of straight lines 3x^(2) - 8xy + 5y^(2) = 0 is