The following line(s) is (are) tangent to the curve `y=x^2 - x` (A) `x-y=0` (B) `x+y=0` (C) `x-y=1` (D) `x+y=1`

IF the lines y=-4x+b are tangents to the curve y=1/x , then b=

Which of the following line can be tangent to the parabola y^(2)=8x?( a) x-y+2=0 (b) 9x-3y+2=0( c) x+2y+8=0( d )x+3y+12=0

The equation of common tangent to the curves y^2 =4x and xy=2 is (A) x+2y-4=0 (B) x+2y+4=0 (C) x-2y+4=0 (D) x-2y-4=0

The equation of the tangent to the curve y=sec x at the point (0,1) is (a) y=0 (b) x=0 (c) y=1 (d) x=1

The normal to the curve x^(2)=4y passing (1,2) is (A) x+y=3 (B) x-y=3 (D) x-y=1

The equation to the normal to the curve y=sinx at (0,\ 0) is x=0 (b) y=0 (c) x+y=0 (d) x-y=0

The normal at the point (1,1) on the curve 2y+x^(2)=3 is (A) x+y=0 (B) x-y+1=0x-y+1=0x-y=0

26Which of the following lines have the intercepts of equal lengths on the circle,x^(2)+y^(2)-2x+4y=0 (A) 3x-y=0 (B) x+3y=0(C)x+3y+10=0(D)3x-y-10=0

Find the equation of the tangent line to the curve y=(3x^2-1)/x at the point (1,2) is (a) 4x-y-1=0 (b) 4x+y+2=0 (c)x-y-1=0 (d) 4x-y-2=0

Equation of the tangents to the ellipse x^2/9 + y^2/16 = 1 which are parallel to the line x+y+1=0 are (A) x+y+5=0 (B) x+y-5=0 (C) x+y+6=0 (D) x+y-6=0