" 1."2x-y+4=0,x+y-1=0

2x-y=4,x-2y+1=0

The equation of tangent to the curve y= x^2 +4x+ 1 at (-1, 1) is...... A) 2x-y+3=0 B) 2x+y-5=0 C) 2x-y-1 =0 D) x+y-1 =0

x-3y=1,3x-2y+4=0

The equation of tangent y= x^2 +4x+1 at (-1, 2) is………. A) 2x -y+4=0 B) 2x+y-5=0 C) 2x+y-1=0 D) x+y-1=0

Equation of the rectangular hyperbola whose focus is (1,-1) and the corresponding directrix is x-y+1=0 . a. x^(2)-y^(2)=1 b. xy=1 c. 2xy-4x+4y+1=0 d. 2xy+4x-4y-1=0

The area of the triangle formed by the lines 2x+y-4=0, 3x+2y-5=0, x+y+1=0 is

The equation oi the conic with focus at (1,-1) directrix along x-y+1=0 and eccentricity sqrt(2) is xy=1 b.2xy+4x-4y-1=0cx^(2)-y^(2)=1 d.2xy-4x+4y=1=0

The line common to the given families of line a(x +y+1)+b(2x-3y-8)=0 and lambda(x-y-1)+mu (2x-y-1)=0 is : x+y+1=0 x+y-1=0 x+y-1=0 None of these

For the circle x^(2)+y^(2)-2x-4y-4=0 ,the lines 2x+3y-1=0,2x+y-1=0 are