1) ax + by + 1 = 0, x + y = 0 2) ax + by – 1 = 0, x + y = 0 3) ax + by + 1 = 0, x – y = 0 4) None of these Solution: Given ax2 + (a + b)xy +... View Article
1) p = 1 and q = 2 or 6 2) p = 2 and q = 0 or 6 3) p = 2 and q = 0 or 8 4) p = –2 and q = – 2 or 8 Solution: Given 2x2 + 4xy - py2 + 4x +... View Article
1) 9 : 8 2) 8 : 9 3) 1 : 2 4) 2 : 1 Solution: Given x2/a + y2/b + 2xy/h = 0 ..(i) Let m be the slope. Then other slope is 2m. So one line is... View Article
1) Real and coincident 2) Real and different 3) Imaginary and different 4) None of the above Solution: Given 4x2 + 12xy + 9y2 = 0 We know... View Article
1) x + 4y = 0 and x + 3y = 0 2) 2x – 3y = 0 and x – 4y = 0 3) x – 6y = 0 and x – 3y = 0 4) x + 4y = 0 and x – 3y = 0 Solution: Given x2 + xy... View Article
1) y = x 2) y = –x 3) y = mx 4) my = x Solution: Given equation of lines is px2 - 2rxy + qy2 = 0 ..(i) Comparing with general equation ax2 +... View Article
1) a 2) b 3) h 4) Any real number Solution: Given angle bisectors are coincident. This means the angle bisector of both lines are the same.... View Article
1) h(1 + m2) + m (a – b) = 0 2) h(1 – m2) + m (a + b) = 0 3) h(1 – m2) + m (a – b) = 0 4) h(1 + m2) + m (a + b) = 0 Solution: Equation of... View Article