[x+y=7" and "ax^(2)+2hxy+ay^(2)=0,(a!=0)," are "],[" three real distinct lines forming a triangle is "]

x+y=7 and ax^(2)+2hxy+ay^(2)=0,(a!=0), are three real distinct lines forming a triangle.Then the triangle is isosceles (b) scalene equilateral (d) right angled

x+y=7 and a x^2+2h x y+a y^2=0,(a!=0) , are three real distinct lines forming a triangle. Then the triangle is (a) isosceles (b) scalene equilateral (d) right angled

x+y=7 and a x^2+2h x y+a y^2=0,(a!=0) , are three real distinct lines forming a triangle. Then the triangle is isosceles (b) scalene equilateral (d) right angled

x+y=7 and a x^2+2h x y+a y^2=0,(a!=0) , are three real distinct lines forming a triangle. Then the triangle is isosceles (b) scalene equilateral (d) right angled

x+y=7 and a x^2+2h x y+a y^2=0,(a!=0) , are three real distinct lines forming a triangle. Then the triangle is isosceles (b) scalene equilateral (d) right angled

x+y=7 and a x^2+2h x y+a y^2=0,(a!=0) , are three real distinct lines forming a triangle. Then the triangle is (a) isosceles (b) scalene (c) equilateral (d) right angled

If the lines represented by ax^(2)+4xy+4y^(2)=0 are real distinct, then

The equation ax^(2)+2hxy+ay^(2)=0 represents a pair of coincident lines through origin, if